From seminars-announce.astro-at-su.se at lists.su.se Mon Jan 7 21:00:28 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 7 Jan 2019 20:00:28 +0000 Subject: [Astronomy seminar] Astronomy seminar Friday 11/01 at 10:30 in FC61 Message-ID: Dear all, welcome back to the weekly appointment at our astronomy department. The first speaker of 2019 is Dr. Benedetta Ciardi from the Max Planck Institute of astrophysics in Munich (Germany). The seminar will take place Friday 11th of January in room FC61 at 10:30. Title and abstract are included below and in the albanova agenda. Kind regards, Alexis & Angela https://www.albanova.se/event/astronomy-seminar-modeling-and-observing-cosmic-reionization/ Title: Modeling and Observing Cosmic Reionization Abstract: The reionization of the intergalactic medium (IGM) is one of the last mostly unexplored frontiers is observational astrophysics. In this talk I will discuss some recent development in the theoretical modeling of the process which will aid the interpretation of upcoming observations. I will also present prospects in the detection of the 21cm line from neutral hydrogen from the high redshift IGM and what such measurements will reveal about cosmic reionization. ------------------------------------------------------- Angela Adamo Department of Astronomy Stockholm University and Oskar Klein Centre SE-10691 Stockholm - Sweden tel: +46 (0)8 5537 8556 email: angela.adamo at astro.su.se http://ttt.astro.su.se/~adamo ------------------------------------------------------- From seminars-announce.astro-at-su.se at lists.su.se Fri Jan 11 08:13:19 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 11 Jan 2019 08:13:19 +0100 Subject: [Astronomy seminar] Reminder: Astronomy seminar Today at 10:30 in FC61 In-Reply-To: References: Message-ID: Welcome! Angela > On 7 Jan 2019, at 21:00, Angela Adamo wrote: > > Dear all, > welcome back to the weekly appointment at our astronomy department. > > The first speaker of 2019 is Dr. Benedetta Ciardi from the Max Planck Institute of astrophysics in Munich (Germany). > The seminar will take place Friday 11th of January in room FC61 at 10:30. Title and abstract are included below and in the albanova agenda. > > Kind regards, > Alexis & Angela > > https://www.albanova.se/event/astronomy-seminar-modeling-and-observing-cosmic-reionization/ > > Title: Modeling and Observing Cosmic Reionization > > Abstract: The reionization of the intergalactic medium (IGM) is one of the last mostly unexplored frontiers is observational astrophysics. In this talk I will discuss some recent development in the theoretical modeling of the process which will aid the interpretation of upcoming observations. I will also present prospects in the detection of the 21cm line from neutral hydrogen from the high redshift IGM and what such measurements will reveal about cosmic reionization. > > > ------------------------------------------------------- > Angela Adamo > > Department of Astronomy > Stockholm University and Oskar Klein Centre > SE-10691 Stockholm - Sweden > tel: +46 (0)8 5537 8556 > email: angela.adamo at astro.su.se > http://ttt.astro.su.se/~adamo > ------------------------------------------------------- > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Tue Jan 15 10:48:49 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Tue, 15 Jan 2019 09:48:49 +0000 Subject: [Astronomy seminar] Astronomy seminar Friday 18th Jan at 10:30 FC61 Message-ID: Dear all, welcome to our weekly seminar at the astronomy department. The speaker of this week is Dr. Floriane Leclercq from the University of Lyon, France. Title and abstract are available here below and posted on the albanova agenda. Kind regards, Angela and Alexis The close gaseous envelop of distant star-forming galaxies : study of the Lya haloes revealed by MUSE The CGM serves as the interface between galaxies and the larger structures within which they evolve. Thus, studying the environment of galaxies represents a crucial step in understanding the mechanisms governing their formation and evolution. Unfortunately, direct observation of the CGM is often quite difficult, since these regions are very faint. Using the unrivaled sensitivity of the MUSE/VLT instrument, we reported — in Leclercq et al. 2017 — the detection of cold hydrogen gas surrounding 145 low-mass (<1010 M⊙), faint (-15 ≥ MUV ≥ -22) and very distant (3 < z < 6) galaxies emitting Lya photons (forming 80% of the total galaxy sample tested). This sample represents the largest collection ever compiled of individually-detected Lya halos around normal star-forming galaxies observed in an epoch when the Universe was still forming. Our results (i) reinforce the idea that Lya haloes are ubiquitous around high-z galaxies, (ii) reveal a large diversity in the Lya halo properties which (iii) do not show strong and significant correlations with the UV properties of the host galaxies. In this talk, I will present the main results from this Lya haloes study and introduce our new analysis of the Lya haloes spectral properties (Leclercq et al. in prep). In this work, we look at the evolution of the Lya line profile within the halo in order to better understand the information encoded in the shape of the Lya line. This information can help shed light on the origin of the Lya emission and therefore constrain the gas opacity and kinematics. https://www.albanova.se/event/astronomy-seminar/ ------------------------------------------------------- Angela Adamo Assistant professor Department of Astronomy, Stockholm University and Oskar Klein Centre SE-10691 Stockholm - Sweden tel: +46 (0)8 5537 8556 email: angela.adamo at astro.su.se http://ttt.astro.su.se/~adamo ------------------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Thu Jan 17 17:44:46 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Thu, 17 Jan 2019 17:44:46 +0100 Subject: [Astronomy seminar] IMPORTANT - ROOM CHANGE!Astronomy seminar tomorrow at 10:30 in the Nordita seminar room (128:028, Nordita West) In-Reply-To: <54705C3F-0F74-4A69-8E34-7A19A2021F1D@astro.su.se> References: <54705C3F-0F74-4A69-8E34-7A19A2021F1D@astro.su.se> Message-ID: Dear all, Due to a conflicted booking, the astronomy seminar tomorrow will take place in the Nordita seminar room (128:028, Nordita West). When you get out of the albanova main building, go to the first short building to your right. You need to have your access card to enter the nordita building. Once inside the building reach the main corridor and turn to the right, the meeting room is located at the end of the right side corridor. Kind regards, Angela > On 15 Jan 2019, at 10:48, Angela Adamo wrote: > > Dear all, > welcome to our weekly seminar at the astronomy department. > The speaker of this week is Dr. Floriane Leclercq from the University of Lyon, France. > Title and abstract are available here below and posted on the albanova agenda. > > Kind regards, > Angela and Alexis > > The close gaseous envelop of distant star-forming galaxies : study of the Lya haloes revealed by MUSE > > The CGM serves as the interface between galaxies and the larger structures within which they evolve. Thus, studying the environment of galaxies represents a crucial step in understanding the mechanisms governing their formation and evolution. Unfortunately, direct observation of the CGM is often quite difficult, since these regions are very faint. Using the unrivaled sensitivity of the MUSE/VLT instrument, we reported — in Leclercq et al. 2017 — the detection of cold hydrogen gas surrounding 145 low-mass (<1010 M⊙), faint (-15 ≥ MUV ≥ -22) and very distant (3 < z < 6) galaxies emitting Lya photons (forming 80% of the total galaxy sample tested). This sample represents the largest collection ever compiled of individually-detected Lya halos around normal star-forming galaxies observed in an epoch when the Universe was still forming. Our results (i) reinforce the idea that Lya haloes are ubiquitous around high-z galaxies, (ii) reveal a large diversity in the Lya halo properties which (iii) do not show strong and significant correlations with the UV properties of the host galaxies. > > In this talk, I will present the main results from this Lya haloes study and introduce our new analysis of the Lya haloes spectral properties (Leclercq et al. in prep). In this work, we look at the evolution of the Lya line profile within the halo in order to better understand the information encoded in the shape of the Lya line. This information can help shed light on the origin of the Lya emission and therefore constrain the gas opacity and kinematics. > > > https://www.albanova.se/event/astronomy-seminar/ > > > > ------------------------------------------------------- > Angela Adamo > > Assistant professor > Department of Astronomy, > Stockholm University and Oskar Klein Centre > SE-10691 Stockholm - Sweden > tel: +46 (0)8 5537 8556 > email: angela.adamo at astro.su.se > http://ttt.astro.su.se/~adamo > ------------------------------------------------------- > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Fri Jan 18 08:46:07 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 18 Jan 2019 08:46:07 +0100 Subject: [Astronomy seminar] IMPORTANT - ROOM CHANGE!Astronomy seminar tomorrow at 10:30 in the Nordita seminar room (122:026, Nordita West) In-Reply-To: <2DC695F8-31F5-479C-83F3-3A2F90F06A54@astro.su.se> References: <54705C3F-0F74-4A69-8E34-7A19A2021F1D@astro.su.se> <2DC695F8-31F5-479C-83F3-3A2F90F06A54@astro.su.se> Message-ID: A kind reminder of today seminar. Don’t be discouraged by the walk. You will be rewarded by a very interesting seminar and exercise in the fresh air! Angela > On 17 Jan 2019, at 17:44, Angela Adamo wrote: > > Dear all, > Due to a conflicted booking, the astronomy seminar tomorrow will take place in the Nordita seminar room (122:026, Nordita West). When you get out of the albanova main building, go to the first short building to your right. You need to have your access card to enter the nordita building. Once inside the building reach the main corridor and turn to the right, the meeting room is located at the end of the right side corridor. > > Kind regards, > > Angela > > On 15 Jan 2019, at 10:48, Angela Adamo wrote: > >> Dear all, >> welcome to our weekly seminar at the astronomy department. >> The speaker of this week is Dr. Floriane Leclercq from the University of Lyon, France. >> Title and abstract are available here below and posted on the albanova agenda. >> >> Kind regards, >> Angela and Alexis >> >> The close gaseous envelop of distant star-forming galaxies : study of the Lya haloes revealed by MUSE >> >> The CGM serves as the interface between galaxies and the larger structures within which they evolve. Thus, studying the environment of galaxies represents a crucial step in understanding the mechanisms governing their formation and evolution. Unfortunately, direct observation of the CGM is often quite difficult, since these regions are very faint. Using the unrivaled sensitivity of the MUSE/VLT instrument, we reported — in Leclercq et al. 2017 — the detection of cold hydrogen gas surrounding 145 low-mass (<1010 M⊙), faint (-15 ≥ MUV ≥ -22) and very distant (3 < z < 6) galaxies emitting Lya photons (forming 80% of the total galaxy sample tested). This sample represents the largest collection ever compiled of individually-detected Lya halos around normal star-forming galaxies observed in an epoch when the Universe was still forming. Our results (i) reinforce the idea that Lya haloes are ubiquitous around high-z galaxies, (ii) reveal a large diversity in the Lya halo properties which (iii) do not show strong and significant correlations with the UV properties of the host galaxies. >> >> In this talk, I will present the main results from this Lya haloes study and introduce our new analysis of the Lya haloes spectral properties (Leclercq et al. in prep). In this work, we look at the evolution of the Lya line profile within the halo in order to better understand the information encoded in the shape of the Lya line. This information can help shed light on the origin of the Lya emission and therefore constrain the gas opacity and kinematics. >> >> >> https://www.albanova.se/event/astronomy-seminar/ >> >> >> >> ------------------------------------------------------- >> Angela Adamo >> >> Assistant professor >> Department of Astronomy, >> Stockholm University and Oskar Klein Centre >> SE-10691 Stockholm - Sweden >> tel: +46 (0)8 5537 8556 >> email: angela.adamo at astro.su.se >> http://ttt.astro.su.se/~adamo >> ------------------------------------------------------- >> -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Jan 21 20:25:18 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 21 Jan 2019 19:25:18 +0000 Subject: [Astronomy seminar] Astronomy seminar Friday 25th Jan at 10:30 FC61 In-Reply-To: <54705C3F-0F74-4A69-8E34-7A19A2021F1D@astro.su.se> References: <54705C3F-0F74-4A69-8E34-7A19A2021F1D@astro.su.se> Message-ID: Dear all, welcome to our weekly seminar at the astronomy department. The speaker of this week is Dr. Chris Evans from the UK Astronomy Technology Centre, Edinburgh. Title and abstract are available here below and posted on the albanova agenda https://www.albanova.se/event/astronomy-seminar-2/ Kind regards, Angela and Alexis Massive stars: From the VLT to the ELTs Massive stars play a key role in the dynamical and chemical evolution of star-forming galaxies, via their intense stellar winds, UV radiation fields, and explosive deaths. To develop realistic tools to analyse integrated-light observations of distant galaxies, we first need to calibrate the models via study of stars closer to home. To this end, I will summarise some key results from the VLT-FLAMES Tarantula Survey, which has obtained multi-epoch spectroscopy of the massive-star population of 30 Doradus, the richest stellar nursery in the Local Group. Looking ahead, I will also discuss the exciting potential of the Extremely Large Telescope (ELT), which will enable direct abundance estimates for individual stars in galaxies across a large volume of the local Universe. ------------------------------------------------------- Angela Adamo Assistant professor Department of Astronomy, Stockholm University and Oskar Klein Centre SE-10691 Stockholm - Sweden tel: +46 (0)8 5537 8556 email: angela.adamo at astro.su.se http://ttt.astro.su.se/~adamo ------------------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Fri Jan 25 07:53:05 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 25 Jan 2019 07:53:05 +0100 Subject: [Astronomy seminar] Reminder: Astronomy seminar today at 10:30 FC61 In-Reply-To: References: <54705C3F-0F74-4A69-8E34-7A19A2021F1D@astro.su.se> Message-ID: A kind reminder Angela > On 21 Jan 2019, at 20:25, Angela Adamo wrote: > > Dear all, > welcome to our weekly seminar at the astronomy department. > The speaker of this week is Dr. Chris Evans from the UK Astronomy Technology Centre, Edinburgh. > Title and abstract are available here below and posted on the albanova agenda https://www.albanova.se/event/astronomy-seminar-2/ > > Kind regards, > Angela and Alexis > > Massive stars: From the VLT to the ELTs > > Massive stars play a key role in the dynamical and chemical evolution of star-forming galaxies, via their intense stellar winds, UV radiation fields, and explosive deaths. To develop realistic tools to analyse integrated-light observations of distant galaxies, we first need to calibrate the models via study of stars closer to home. To this end, I will summarise some key results from the VLT-FLAMES Tarantula Survey, which has obtained multi-epoch spectroscopy of the massive-star population of 30 Doradus, the richest stellar nursery in the Local Group. Looking ahead, I will also discuss the exciting potential of the Extremely Large Telescope (ELT), which will enable direct abundance estimates for individual stars in galaxies across a large volume of the local Universe. > > ------------------------------------------------------- > Angela Adamo > > Assistant professor > Department of Astronomy, > Stockholm University and Oskar Klein Centre > SE-10691 Stockholm - Sweden > tel: +46 (0)8 5537 8556 > email: angela.adamo at astro.su.se > http://ttt.astro.su.se/~adamo > ------------------------------------------------------- > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Jan 28 12:04:33 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 28 Jan 2019 12:04:33 +0100 Subject: [Astronomy seminar] Upcoming astronomy seminars Message-ID: Dear all,  here is a summary of upcoming astronomy seminars and PhD defences in February 2019: 1 Fri   13:00 FB55 PhD defence Johan P. Bjørgen 8 Fri   10:30 FC61 Seminar Jonathan Tennyson (joint with Atom and Chemical Physics group) 8 Fri   13:00 FB54 PhD defence Esha Kundu 14 Thu 15:00 FC61 Seminar Steven Longmore 15 Fri   13:00 FA31 PhD defence Matteo Messa 22 Fri   10:30 FC61 Seminar Rubén Asemsio Torres All welcome!  Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Mon Feb 4 03:37:47 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 4 Feb 2019 03:37:47 +0100 Subject: [Astronomy seminar] Seminar Friday at 10:30 FC61: Jonathan Tennyson Message-ID: On Friday at 10:30 in FC61 there will a joint Astronomy and Atomic & Chemical physics seminar by Jonathan Tennyson (UCL) who will give a bit more technical talk than his general colloquium on Thursday. Also on Friday but at 13:00, Esha Kundu will defend her PhD thesis on "Radio Emission from Supernovae" in FB54. Speaker:  Jonathan Tennyson (UCL) Title: Calculating accurate spectra for water and other small molecules from first principle Abstract: The equations of quantum mechanics provide a complete framework to compute the spectra of molecules; doing this accurately requires detailed numerical treatment of both the electronic and nuclear motion. To obtain transition frequencies close to experimental accuracy requires the consideration of many effects not usually considered in standard electronic structure calculations; conversely experience shows that it is often possible to compute transition intensities with lower uncertainty than they can be measured. The seminar will discuss some of the methods used for these studies focusing on atmospherically and astronomically important molecules such as water, CO2 and H3+. Other upcoming events: 14 Thu 15:00 FC61 Seminar Steven Longmore 15 Fri   13:00 FA31 PhD defence Matteo Messa 22 Fri   10:30 FC61 Seminar Rubén Asemsio Torres All welcome!   Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Feb 8 09:38:44 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 8 Feb 2019 09:38:44 +0100 Subject: [Astronomy seminar] TODAY at 10:30 FC61: Jonathan Tennyson In-Reply-To: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> Message-ID: Note also that Esha Kundu’s defence this afternoon has changed room to FB53. > On 4 Feb 2019, at 03:37, Alexis Brandeker wrote: > > On Friday at 10:30 in FC61 there will a joint Astronomy and Atomic & > Chemical physics seminar by Jonathan Tennyson (UCL) who will give a bit > more technical talk than his general colloquium on Thursday. Also on > Friday but at 13:00, Esha Kundu will defend her PhD thesis on "Radio > Emission from Supernovae" in *FB53*. > > Speaker: Jonathan Tennyson (UCL) > > Title: Calculating accurate spectra for water and other small molecules > from first principle > > Abstract: > The equations of quantum mechanics provide a complete framework to > compute the spectra of molecules; doing this accurately requires > detailed numerical treatment of both the electronic and nuclear motion. > To obtain transition frequencies close to experimental accuracy requires > the consideration of many effects not usually considered in standard > electronic structure calculations; conversely experience shows that it > is often possible to compute transition intensities with lower > uncertainty than they can be measured. The seminar will discuss some of > the methods used for these studies focusing on atmospherically and > astronomically important molecules such as water, CO2 and H3+. > > Other upcoming events: > > 14 Thu 15:00 FC61 Seminar Steven Longmore > 15 Fri 13:00 FA31 PhD defence Matteo Messa > 22 Fri 10:30 FC61 Seminar Rubén Asemsio Torres > > All welcome! > Alexis Brandeker (Astronomy seminar organiser VT 2019) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Feb 11 10:59:26 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 11 Feb 2019 10:59:26 +0100 Subject: [Astronomy seminar] Astronomy seminar *THURSDAY* at 15:00 FC61: Steven Longmore In-Reply-To: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> Message-ID: This week's astronomy seminar will take place on Thursday 15:00 in FC61. Also, on Friday Matteo Messa will defend his PhD thesis at 13:00 in FA31. Speaker: Steven Longmore (John Moores University, Liverpool) Title: Investigating ecosystems from the centres of galaxies to those on the verge of collapse here on Earth Abstract: This talk will be a tale of two topics using astrophysical techniques to investigate ecosystems. In the first half I will review recent progress on an emerging, multi-scale picture of star formation and feedback in the centres of galaxy, and efforts to synthesise this into a general understanding of the mass flows and energy cycles in (extra) galactic nuclei. In the second half of the talk I will discuss how we are using astrophysics research techniques to help ecologists save critically endangered animal species and stop peat fires that are a major contributor to global warming. All welcome!    Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Thu Feb 14 07:08:20 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Thu, 14 Feb 2019 07:08:20 +0100 Subject: [Astronomy seminar] Astronomy seminar *TODAY* at 15:00 FC61: Steven Longmore In-Reply-To: <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> Message-ID: Note day & time! Welcome. On 2019-02-11 10:59, Alexis Brandeker wrote: > This week's astronomy seminar will take place on Thursday 15:00 in FC61. > Also, on Friday Matteo Messa will defend his PhD thesis at 13:00 in FA31. > > Speaker: Steven Longmore (John Moores University, Liverpool) > > Title: Investigating ecosystems from the centres of galaxies to those on > the verge of collapse here on Earth > > Abstract: This talk will be a tale of two topics using astrophysical > techniques to investigate ecosystems. In the first half I will review > recent progress on an emerging, multi-scale picture of star formation > and feedback in the centres of galaxy, and efforts to synthesise this > into a general understanding of the mass flows and energy cycles in > (extra) galactic nuclei. In the second half of the talk I will discuss > how we are using astrophysics research techniques to help ecologists > save critically endangered animal species and stop peat fires that are a > major contributor to global warming. > > All welcome! >     Alexis Brandeker (Astronomy seminar organiser VT 2019) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Feb 18 05:49:42 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 18 Feb 2019 05:49:42 +0100 Subject: [Astronomy seminar] =?utf-8?q?Astronomy_seminar_Friday_22/2=2C_10?= =?utf-8?q?=3A30_FC61=3A_Rub=C3=A9n_Asensio_Torres?= In-Reply-To: <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> Message-ID: Time & location: Friday 22/2, 10:30 in FC61 Speaker: Rubén, Asensio Torres (SU) Title: High-contrast imaging of low-mass companions Abstract: The search for exoplanets, i.e., planets orbiting other stars than the Sun, is a relatively new research field, but has already established itself as one of the most prolific and intriguing areas of astronomy. By now we are in a situation where the focus is not only on finding companions to stars, but also on characterising their atmospheres and physical properties, which overall allows us to put our Solar System into context. In this seminar I will provide an introduction to the basis of the direct imaging technique, and discuss how it can be used to find and characterise low-mass companions. In particular, I will present the first direct imaging survey aimed at discovering circumbinary planets (SPOTS: Search for Planets Orbiting Two Stars), which includes the observations of 62 targets with VLT/NaCo and VLT/SPHERE, and a statistical analysis on the findings. These results put constraints on the population of giant planets and brown dwarfs on wide orbits. Moreover, I will present a second project where the new SCExAO/CHARIS integral field spectrograph is used to constrain the physical properties of a young stellar triple system via low-resolution spectroscopy. The observational data seem to point to a model age-mass discrepancy for young systems. All welcome!     Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Feb 22 09:40:48 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 22 Feb 2019 09:40:48 +0100 Subject: [Astronomy seminar] =?utf-8?q?Astronomy_seminar_TODAY_10=3A30_FC6?= =?utf-8?q?1=3A_Rub=C3=A9n_Asensio_Torres?= In-Reply-To: <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> Message-ID: On 2019-02-18 5:49 , Alexis Brandeker wrote: > Time & location: Friday 22/2, 10:30 in FC61 > > Speaker: Rubén, Asensio Torres (SU) > > Title: High-contrast imaging of low-mass companions > > Abstract: > The search for exoplanets, i.e., planets orbiting other stars than the > Sun, is a relatively new research field, but has already established > itself as one of the most prolific and intriguing areas of astronomy. By > now we are in a situation where the focus is not only on finding > companions to stars, but also on characterising their atmospheres and > physical properties, which overall allows us to put our Solar System > into context. In this seminar I will provide an introduction to the > basis of the direct imaging technique, and discuss how it can be used to > find and characterise low-mass companions. In particular, I will present > the first direct imaging survey aimed at discovering circumbinary > planets (SPOTS: Search for Planets Orbiting Two Stars), which includes > the observations of 62 targets with VLT/NaCo and VLT/SPHERE, and a > statistical analysis on the findings. These results put constraints on > the population of giant planets and brown dwarfs on wide orbits. > Moreover, I will present a second project where the new SCExAO/CHARIS > integral field spectrograph is used to constrain the physical properties > of a young stellar triple system via low-resolution spectroscopy. The > observational data seem to point to a model age-mass discrepancy for > young systems. > > All welcome! >      Alexis Brandeker (Astronomy seminar organiser VT 2019) > > From seminars-announce.astro-at-su.se at lists.su.se Mon Mar 4 11:19:06 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 4 Mar 2019 11:19:06 +0100 Subject: [Astronomy seminar] Astronomy seminar Friday 10:30 FC61: Sambit Giri In-Reply-To: <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> Message-ID: Time & location: Friday 8/3, 10:30 in FC61 Speaker: Sambit Giri (SU) Title: Tomographic studies of 21-cm signal during reionization Abstract: The formation of the first luminous sources in the Universe, such as the first generation of stars and accreting black holes, led to the ionization of hydrogen gas present in the intergalactic medium (IGM). This period in which the Universe transitioned from a cold and neutral state to a predominantly hot and ionized state is known as the Epoch of Reionization (EoR). The EoR is one of the least understood epochs in the Universe's evolution mostly due to the lack of direct observations. We can probe the reionization process with the  21-cm signal, produced by the spin-flip transition in neutral hydrogen. However, current radio telescopes have not been able to detect this faint signal. The low-frequency component of the Square Kilometre Array (SKA-Low), will be sensitive enough not only to detect the 21-cm signal produced during EoR but also to produce images of its distribution on the sky. A sequence of such 21-cm images from different redshifts will constitute a three-dimensional, tomographic, data set. Before the SKA comes online, it is prudent to develop methods to analyse these tomographic images in a statistical sense. In this seminar, I will describe the EoR information encoded in the 21-cm signal and present the tomographic analysis methods that will be useful to decode this information. Other Friday activities in March: 15/3 (Fri) @ 10:30 : Richard Anderson (ESO) 15/3 (Fri) @ 13:00 : PhD defence Ruben Asensio Torres (SU) 22/3 (Fri) @ 13:00 : PhD defence Tine Libbrecht (SU) 29/3 (Fri) @ 10:30 : Emilia Kilpua (Helsinki) All welcome!      Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Mon Mar 4 11:26:26 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 4 Mar 2019 11:26:26 +0100 Subject: [Astronomy seminar] [alla@astro.su.se] Astronomy seminar Friday 10:30 FC61: Sambit Giri In-Reply-To: <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> Message-ID: A small correction to the listed March activities: Tine Libbrecht's PhD defence is on April 26 at 13:00 (in FB52). All the best, Alexis On 2019-03-04 11:19 , Alexis Brandeker wrote: > Time & location: Friday 8/3, 10:30 in FC61 > > Speaker: Sambit Giri (SU) > > Title: Tomographic studies of 21-cm signal during reionization > > Abstract: > The formation of the first luminous sources in the Universe, such as the > first generation of stars and accreting black holes, led to the > ionization of hydrogen gas present in the intergalactic medium (IGM). > This period in which the Universe transitioned from a cold and neutral > state to a predominantly hot and ionized state is known as the Epoch of > Reionization (EoR). The EoR is one of the least understood epochs in the > Universe's evolution mostly due to the lack of direct observations. We > can probe the reionization process with the  21-cm signal, produced by > the spin-flip transition in neutral hydrogen. However, current radio > telescopes have not been able to detect this faint signal. The > low-frequency component of the Square Kilometre Array (SKA-Low), will be > sensitive enough not only to detect the 21-cm signal produced during EoR > but also to produce images of its distribution on the sky. A sequence of > such 21-cm images from different redshifts will constitute a > three-dimensional, tomographic, data set. Before the SKA comes online, > it is prudent to develop methods to analyse these tomographic images in > a statistical sense. In this seminar, I will describe the EoR > information encoded in the 21-cm signal and present the tomographic > analysis methods that will be useful to decode this information. > > Other Friday activities in March: > > 15/3 (Fri) @ 10:30 : Richard Anderson (ESO) > 15/3 (Fri) @ 13:00 : PhD defence Ruben Asensio Torres (SU) > 22/3 (Fri) @ 13:00 : PhD defence Tine Libbrecht (SU) > 29/3 (Fri) @ 10:30 : Emilia Kilpua (Helsinki) > > All welcome! >       Alexis Brandeker (Astronomy seminar organiser VT 2019) > From seminars-announce.astro-at-su.se at lists.su.se Fri Mar 8 10:09:49 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 8 Mar 2019 10:09:49 +0100 Subject: [Astronomy seminar] Astronomy seminar TODAY 10:30 FC61: Sambit Giri In-Reply-To: <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> Message-ID: On 2019-03-04 11:19 , Alexis Brandeker wrote: > Time & location: Friday 8/3, 10:30 in FC61 > > Speaker: Sambit Giri (SU) > > Title: Tomographic studies of 21-cm signal during reionization > > Abstract: > The formation of the first luminous sources in the Universe, such as > the first generation of stars and accreting black holes, led to the > ionization of hydrogen gas present in the intergalactic medium (IGM). > This period in which the Universe transitioned from a cold and neutral > state to a predominantly hot and ionized state is known as the Epoch > of Reionization (EoR). The EoR is one of the least understood epochs > in the Universe's evolution mostly due to the lack of direct > observations. We can probe the reionization process with the  21-cm > signal, produced by the spin-flip transition in neutral hydrogen. > However, current radio telescopes have not been able to detect this > faint signal. The low-frequency component of the Square Kilometre > Array (SKA-Low), will be sensitive enough not only to detect the 21-cm > signal produced during EoR but also to produce images of its > distribution on the sky. A sequence of such 21-cm images from > different redshifts will constitute a three-dimensional, tomographic, > data set. Before the SKA comes online, it is prudent to develop > methods to analyse these tomographic images in a statistical sense. In > this seminar, I will describe the EoR information encoded in the 21-cm > signal and present the tomographic analysis methods that will be > useful to decode this information. > > Other Friday activities in March: > > 15/3 (Fri) @ 10:30 : Richard Anderson (ESO) > 15/3 (Fri) @ 13:00 : PhD defence Ruben Asensio Torres (SU) > 29/3 (Fri) @ 10:30 : Emilia Kilpua (Helsinki) > > All welcome! >      Alexis Brandeker (Astronomy seminar organiser VT 2019) > From seminars-announce.astro-at-su.se at lists.su.se Mon Mar 11 11:38:14 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 11 Mar 2019 11:38:14 +0100 Subject: [Astronomy seminar] Astronomy seminar Friday 15/3 10:30 FC61: Richard I. Anderson In-Reply-To: <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> Message-ID: (Apart from the seminar in the morning, Rubén Asensio Torres will defend his thesis in the afternoon.) Astronomy seminar ============ Time & location: Friday 15/3, 10:30 in FC61 Speaker: Richard I. Anderson (ESO) Title: New Light on Standard Candles: Cepheids as sensitive stellar laboratories and accurate cosmic yardsticks Abstract: This talk presents the crucial role that type-I Cepheid variable stars play in improving the understanding of how stars and the cosmos evolve. Starting from the recently reported Hubble constant tension that may imply a need for new physics beyond standard cosmology, I will describe ongoing efforts to measure H0 with an accuracy of 1%. Specifically, I will present an ongoing large observing program operating on both hemispheres that has measured more than 15,000 high-precision radial velocities of Cepheids in support of accurate parallaxes and alternative distance estimates based on Baade-Wesselink-type methods. Highlighting the impact of binaries for accurate parallax determination, I will show that stars physically associated with Cepheids contribute a modest photometric bias of less than 0.23% to H0, which may be further reduced in the future. The second part of the talk presents how rotation is expected to impact the evolutionary paths of Cepheids and how this relates to their use as cosmic yardsticks. Time permitting, I will present the curious case of Polaris, our nearest Cepheid, whose Gaia-based luminosity estimate and multi-periodic variability seem to defy theory, thus underlining the urgent need for a more detailed astrophysical understanding of our most important standard candles. Arjan Bik will serve as a host for the speaker. Other Friday activities in March: 15/3 (Fri) @ 13:00 : PhD defence Ruben Asensio Torres (SU) 22/3 (Fri) : Open slot, NO SEMINAR scheduled (yet) 29/3 (Fri) @ 10:30 : Emilia Kilpua (Helsinki) All welcome!       Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Mar 15 10:02:07 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 15 Mar 2019 09:02:07 +0000 Subject: [Astronomy seminar] Reminder: Astronomy seminar Today at 10:30 FC61: Richard I. Anderson In-Reply-To: <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> Message-ID: Hi everyone, welcome to today seminar. Richard will talk about stellar variability, tension in the measurement of the Hubble constant, and use GAIA measurement to better understand these stellar standard candles. Angela On 11 Mar 2019, at 11:38, Alexis Brandeker > wrote: (Apart from the seminar in the morning, Rubén Asensio Torres will defend his thesis in the afternoon.) Astronomy seminar ============ Time & location: Friday 15/3, 10:30 in FC61 Speaker: Richard I. Anderson (ESO) Title: New Light on Standard Candles: Cepheids as sensitive stellar laboratories and accurate cosmic yardsticks Abstract: This talk presents the crucial role that type-I Cepheid variable stars play in improving the understanding of how stars and the cosmos evolve. Starting from the recently reported Hubble constant tension that may imply a need for new physics beyond standard cosmology, I will describe ongoing efforts to measure H0 with an accuracy of 1%. Specifically, I will present an ongoing large observing program operating on both hemispheres that has measured more than 15,000 high-precision radial velocities of Cepheids in support of accurate parallaxes and alternative distance estimates based on Baade-Wesselink-type methods. Highlighting the impact of binaries for accurate parallax determination, I will show that stars physically associated with Cepheids contribute a modest photometric bias of less than 0.23% to H0, which may be further reduced in the future. The second part of the talk presents how rotation is expected to impact the evolutionary paths of Cepheids and how this relates to their use as cosmic yardsticks. Time permitting, I will present the curious case of Polaris, our nearest Cepheid, whose Gaia-based luminosity estimate and multi-periodic variability seem to defy theory, thus underlining the urgent need for a more detailed astrophysical understanding of our most important standard candles. Arjan Bik will serve as a host for the speaker. Other Friday activities in March: 15/3 (Fri) @ 13:00 : PhD defence Ruben Asensio Torres (SU) 22/3 (Fri) : Open slot, NO SEMINAR scheduled (yet) 29/3 (Fri) @ 10:30 : Emilia Kilpua (Helsinki) All welcome! Alexis Brandeker (Astronomy seminar organiser VT 2019) ------------------------------------------------------- Angela Adamo Assistant professor Department of Astronomy, Stockholm University and Oskar Klein Centre SE-10691 Stockholm - Sweden tel: +46 (0)8 5537 8556 email: angela.adamo at astro.su.se http://ttt.astro.su.se/~adamo ------------------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Mar 18 09:08:36 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 18 Mar 2019 09:08:36 +0100 Subject: [Astronomy seminar] Astronomy seminar Friday 22/3 10:30 FC61: Sofie Liljegren In-Reply-To: <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> Message-ID: Astronomy seminar ================ Time & location: Friday 22/3, 10:30 in FC61 Speaker: Sofie Liljegren (SU) Title: Stellar winds of cool giants Abstract: Exploring and understanding the lives and deaths of stars are fundamental goals of astronomical research. Stars in the late stages of stellar evolution are of particularly interest as they are major sites for nucleosynthesis, where the processed material later returned to the cosmic matter cycle is produced. Massive stars are the main contributors of heavy elements through supernova explosions, but low-to-intermediate-mass giants are believed to be responsible for at least one third of all the carbon produced, a significant fraction of the heavier s-process elements as well as (possibly?) a significant amount of cosmic dust. Such stars are also (maybe?) progenitors to type 1A supernovae. It is of great importance to not only observe but also describe these cool giants with realistic models based on first principle. In this seminar I will present the main results from my PhD thesis, where I theoretically explore the dynamics and mass-loss mechanism of low-to-intermediate mass stars on the Asymptotic Giant Branch (AGB). Other upcoming Friday activities: 29/3 (Fri) @ 10:30 : Emilia Kilpua (Helsinki) 5/4 (Fri) @ 10:30: Christian Herenz (SU) 12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet) 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 All welcome!        Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Mar 22 08:13:12 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 22 Mar 2019 08:13:12 +0100 Subject: [Astronomy seminar] Astronomy seminar TODAY @ 10:30 FC61: Sofie Liljegren In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> Message-ID: On 2019-03-18 09:08, Alexis Brandeker wrote: > Astronomy seminar > ================ > > Time & location: Friday 22/3, 10:30 in FC61 > > Speaker: Sofie Liljegren (SU) > > Title: Stellar winds of cool giants > > Abstract: > Exploring and understanding the lives and deaths of stars are > fundamental goals of astronomical research. Stars in the late stages of > stellar evolution are of particularly interest as they are major sites > for nucleosynthesis, where the processed material later returned to the > cosmic matter cycle is produced. Massive stars are the main contributors > of heavy elements through supernova explosions, but > low-to-intermediate-mass giants are believed to be responsible for at > least one third of all the carbon produced, a significant fraction of > the heavier s-process elements as well as (possibly?) a significant > amount of cosmic dust. Such stars are also (maybe?) progenitors to type > 1A supernovae. It is of great importance to not only observe but also > describe these cool giants with realistic models based on first > principle. In this seminar I will present the main results from my PhD > thesis, where I theoretically explore the dynamics and mass-loss > mechanism of low-to-intermediate mass stars on the Asymptotic Giant > Branch (AGB). > > Other upcoming Friday activities: > > 29/3 (Fri) @ 10:30 : Emilia Kilpua (Helsinki) > 5/4 (Fri) @ 10:30: Christian Herenz (SU) > 12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet) > 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) > 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 > > All welcome! >         Alexis Brandeker (Astronomy seminar organiser VT 2019) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Mar 25 05:56:20 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 25 Mar 2019 05:56:20 +0100 Subject: [Astronomy seminar] Astronomy seminar Friday 29/3 10:30 FC61: Emilia Kilpua In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> Message-ID: Astronomy seminar ================ Time & location: Friday 22/3, 10:30 in FC61 Speaker: Emilia Kilpua (Helsinki) Title: Determining magnetic field in coronal mass ejection flux ropes Abstract: The knowledge of the magnetic field structure of coronal mass ejections (CMEs) is crucial for understanding their early dynamics and eruptions as well as predicting their space weather effects at Earth.  For example, this information is crucial  for constraining the flux rope parameters both in first-principle space weather simulations (e.g, ENLIL, EUHFORIA and SUSANOO-CME) and in semi-empirical CME models. At the University of Helsinki Space Physics team we are developing both observational schemes and fully data-driven simulations to estimate the initial magnetic field in CME flux ropes. Observational scheme combines several indirect proxies, while our data-driven simulations uses a  time-dependent magnetofrictional modelling (TMFM) approach to estimate the field self-consistently.  In this seminar I will discuss the “Bz problem” from a space weather point of view and present the above mentioned activities within the team. Emilia will be hosted by Sanja Danilovic. Other upcoming Friday activities: 5/4 (Fri) @ 10:30: Christian Herenz (SU) 12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet) 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 All welcome!         Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Mon Mar 25 06:01:24 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 25 Mar 2019 06:01:24 +0100 Subject: [Astronomy seminar] [alla@astro.su.se] Astronomy seminar Friday 29/3 10:30 FC61: Emilia Kilpua In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> Message-ID: Correction: Time & location: Friday 29/3, 10:30 in FC61 On 2019-03-25 05:56, Alexis Brandeker wrote: > Astronomy seminar > ================ > > Time & location: Friday 22/3, 10:30 in FC61 > > Speaker: Emilia Kilpua (Helsinki) > > Title: Determining magnetic field in coronal mass ejection flux ropes > > Abstract: > The knowledge of the magnetic field structure of coronal mass ejections > (CMEs) is crucial for understanding their early dynamics and eruptions > as well as predicting their space weather effects at Earth. For > example, this information is crucial  for constraining the flux rope > parameters both in first-principle space weather simulations (e.g, > ENLIL, EUHFORIA and SUSANOO-CME) and in semi-empirical CME models. At > the University of Helsinki Space Physics team we are developing both > observational schemes and fully data-driven simulations to estimate the > initial magnetic field in CME flux ropes. Observational scheme combines > several indirect proxies, while our data-driven simulations uses a > time-dependent magnetofrictional modelling (TMFM) approach to estimate > the field self-consistently.  In this seminar I will discuss the “Bz > problem” from a space weather point of view and present the above > mentioned activities within the team. > > Emilia will be hosted by Sanja Danilovic. > > Other upcoming Friday activities: > > 5/4 (Fri) @ 10:30: Christian Herenz (SU) > 12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet) > 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) > 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 > > All welcome! >          Alexis Brandeker (Astronomy seminar organiser VT 2019) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Fri Mar 29 05:55:36 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 29 Mar 2019 05:55:36 +0100 Subject: [Astronomy seminar] Astronomy seminar TIODAY 10:30 FC61: Emilia Kilpua In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> Message-ID: On 2019-03-25 05:56, Alexis Brandeker wrote: > Astronomy seminar > ================ > > Time & location: Friday 29/3, 10:30 in FC61 > > Speaker: Emilia Kilpua (Helsinki) > > Title: Determining magnetic field in coronal mass ejection flux ropes > > Abstract: > The knowledge of the magnetic field structure of coronal mass > ejections (CMEs) is crucial for understanding their early dynamics and > eruptions as well as predicting their space weather effects at Earth.  > For example, this information is crucial  for constraining the flux > rope parameters both in first-principle space weather simulations > (e.g, ENLIL, EUHFORIA and SUSANOO-CME) and in semi-empirical CME > models. At the University of Helsinki Space Physics team we are > developing both observational schemes and fully data-driven > simulations to estimate the initial magnetic field in CME flux ropes. > Observational scheme combines several indirect proxies, while our > data-driven simulations uses a time-dependent magnetofrictional > modelling (TMFM) approach to estimate the field self-consistently.  In > this seminar I will discuss the “Bz problem” from a space weather > point of view and present the above mentioned activities within the team. > > Emilia will be hosted by Sanja Danilovic. > > Other upcoming Friday activities: > > 5/4 (Fri) @ 10:30: Christian Herenz (SU) > 12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet) > 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) > 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 > > All welcome! >         Alexis Brandeker (Astronomy seminar organiser VT 2019) > > From seminars-announce.astro-at-su.se at lists.su.se Mon Apr 1 15:18:41 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 1 Apr 2019 15:18:41 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 5/4 10:30 FC61: Christian Herenz In-Reply-To: <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> Message-ID: Astronomy seminar ============ Time & location: Friday April 5, 10:30 in FC61 Speaker: Christian Herenz (SU) Title: Deciphering Lyman alpha emitting galaxies with integral field spectroscopy Abstract: Lyman alpha emitting high-redshift galaxies offer insights into galaxy formation processes in the young universe.  Moreover, they can be used to address cosmological questions regarding the "Epoch of Reionisation" and the nature of dark energy.  In my talk I will show how integral field spectroscopy (IFS) is a viable observational technique for such studies.  In particular, I will detail how we use IFS data to understand Lyman alpha escape mechanisms in a sample of nearby high-redshift analogues.  I will then show how we use the revolutionary IFS instrument MUSE for conducting surveys of Lyman emitting galaxies in the redshift range 3 < z < 6.  Here I will provide an overview over the latest results from those campaigns, with a particular focus on luminosity function studies. My talk will conclude with new (preliminary) results from a 17.5 hour MUSE integration of an extremely luminous extended z=3.1 Lyman alpha emitter known as 'Lyman Alpha Blob 1'. Other upcoming activities: 3/4 (Wed) @ 10:30: Astrobiology talk in FC61, Hendrik Ehrpais (University of Tartu) 3/4 (Wed) @ 13:00: PhD defence of Sambit Giri in FB42 12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet) 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 All welcome! Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Apr 5 08:02:24 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 5 Apr 2019 08:02:24 +0200 Subject: [Astronomy seminar] Astronomy seminar TODAY 10:30 FC61: Christian Herenz In-Reply-To: <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> Message-ID: On 2019-04-01 15:18, Alexis Brandeker wrote: > Astronomy seminar > ============ > > Time & location: Friday April 5, 10:30 in FC61 > > Speaker: Christian Herenz (SU) > > Title: Deciphering Lyman alpha emitting galaxies with integral field > spectroscopy > > Abstract: > Lyman alpha emitting high-redshift galaxies offer insights into galaxy > formation processes in the young universe.  Moreover, they can be used > to address cosmological questions regarding the "Epoch of Reionisation" > and the nature of dark energy.  In my talk I will show how integral > field spectroscopy (IFS) is a viable observational technique for such > studies.  In particular, I will detail how we use IFS data to understand > Lyman alpha escape mechanisms in a sample of nearby high-redshift > analogues.  I will then show how we use the revolutionary IFS instrument > MUSE for conducting surveys of Lyman emitting galaxies in the redshift > range 3 < z < 6.  Here I will provide an overview over the latest > results from those campaigns, with a particular focus on luminosity > function studies. My talk will conclude with new (preliminary) results > from a 17.5 hour MUSE integration of an extremely luminous extended > z=3.1 Lyman alpha emitter known as 'Lyman Alpha Blob 1'. > > Other upcoming activities: > > 3/4 (Wed) @ 10:30: Astrobiology talk in FC61, Hendrik Ehrpais > (University of Tartu) > 3/4 (Wed) @ 13:00: PhD defence of Sambit Giri in FB42 > 12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet) > 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) > 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 > > All welcome! Alexis Brandeker (Astronomy seminar organiser VT 2019) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Fri Apr 5 08:43:49 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 5 Apr 2019 08:43:49 +0200 Subject: [Astronomy seminar] Astronomy seminar *CANCELLED* 10:30 FC61: Christian Herenz In-Reply-To: <65ed0bd3-32c7-aeab-79a8-3dceb36e4192@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <65ed0bd3-32c7-aeab-79a8-3dceb36e4192@astro.su.se> Message-ID: Today's astronomy seminar has unfortunately been cancelled due to illness. On 2019-04-05 08:02, Alexis Brandeker wrote: > > > On 2019-04-01 15:18, Alexis Brandeker wrote: >> Astronomy seminar >> ============ >> >> Time & location: Friday April 5, 10:30 in FC61 >> >> Speaker: Christian Herenz (SU) >> >> Title: Deciphering Lyman alpha emitting galaxies with integral field >> spectroscopy >> >> Abstract: >> Lyman alpha emitting high-redshift galaxies offer insights into galaxy >> formation processes in the young universe.  Moreover, they can be used >> to address cosmological questions regarding the "Epoch of Reionisation" >> and the nature of dark energy.  In my talk I will show how integral >> field spectroscopy (IFS) is a viable observational technique for such >> studies.  In particular, I will detail how we use IFS data to understand >> Lyman alpha escape mechanisms in a sample of nearby high-redshift >> analogues.  I will then show how we use the revolutionary IFS instrument >> MUSE for conducting surveys of Lyman emitting galaxies in the redshift >> range 3 < z < 6.  Here I will provide an overview over the latest >> results from those campaigns, with a particular focus on luminosity >> function studies. My talk will conclude with new (preliminary) results >> from a 17.5 hour MUSE integration of an extremely luminous extended >> z=3.1 Lyman alpha emitter known as 'Lyman Alpha Blob 1'. >> >> Other upcoming activities: >> >> 3/4 (Wed) @ 10:30: Astrobiology talk in FC61, Hendrik Ehrpais >> (University of Tartu) >> 3/4 (Wed) @ 13:00: PhD defence of Sambit Giri in FB42 >> 12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet) >> 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) >> 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 >> >> All welcome! Alexis Brandeker (Astronomy seminar organiser VT 2019) >> >> -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Apr 8 09:02:55 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 8 Apr 2019 09:02:55 +0200 Subject: [Astronomy seminar] No astronomy seminar this week In-Reply-To: <1b5f1ba3-3a5b-5119-5d14-04924f836317@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <65ed0bd3-32c7-aeab-79a8-3dceb36e4192@astro.su.se> <1b5f1ba3-3a5b-5119-5d14-04924f836317@astro.su.se> Message-ID: NO Astronomy Seminar this week. However, there will be an astrobiology talk at Nordita on Friday April 12 at 15:15: Time & location: Friday April 12, 15:15 in 112:028 (Nordita south) Title: The Messenger: a galactic centre gravitational-wave beacon Speaker: Marek Abramowicz (Gothenburg U & Nikolaus Copernicus Center) Abstract: Our existence in the Universe resulted from a rare combination of circumstances. The same must be true for any advanced extraterrestrial civilisation. If there exist any in the Milky Way, they are likely scattered over large distances in space and time, however, they must be aware of the unique property of the Galactic centre: it hosts the closest massive black hole to anyone in the Galaxy. A sufficiently advanced civilisation may have placed material in orbit around this black hole to study it, extract energy from it, and/or for communication purposes. In either case, its orbital motion will necessarily be a source of gravitational waves. Here we show that a Jupiter-mass "Messenger" on the innermost stable circular orbit around the black hole can be sustained for a few billion years by the energy output of a single star and emits an unambiguously artificial (continuous) gravitational wave signal that will be observable with LISA-type detectors. Other upcoming activities: 19/4 (Fri): Good Friday, no seminar 26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin) 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 From seminars-announce.astro-at-su.se at lists.su.se Tue Apr 23 11:38:09 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Tue, 23 Apr 2019 11:38:09 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 26/4 10:30 FC61: Ernst de Mooij In-Reply-To: <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday April 26, 10:30 in FC61 Speaker: Ernst de Mooij (Dublin University) Title: Characterising the Atmospheres and Circumplanetary Environment of Exoplanets Abstract: Since the discovery of the first planet outside our solar-system almost 25 years ago, the field of exoplanet research has made a lot of progress. Not only has the number of known exoplanets increased to over 3000, the atmospheres for a number of exoplanets have been detected. These atmospheric studies have mainly been made for transiting planets. For these planets is not only possible to study their atmosphere in emission/reflection during the secondary eclipse and through their phase-curve, but also in transmission during the transit. I will show that ground-based telescopes can be used to reach the high precision required to detect the atmospheric signatures, while long-term monitoring with space-based telescopes allows us to start and probe dynamics in the atmospheres of alien worlds. Finally, I will show how we can use high-resolution spectroscopy to search for rings around exoplanets. 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 3/5 (Fri) @ 10:30: Michelle Collins (Surrey) 10/5 (Fri) @ 10:30: Open slot, NO SEMINAR scheduled (yet) 17/5 (Fri) @ 10:30: Karin Lind (MPIA) 24/5 (Fri) @ 10:30: Dainis Dravins (Lund University) All welcome! Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Apr 26 09:33:17 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 26 Apr 2019 09:33:17 +0200 Subject: [Astronomy seminar] Astronomy seminar TODAY @ 10:30 FC61: Ernst de Mooij In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> Message-ID: On 2019-04-23 11:38 , Alexis Brandeker wrote: > Astronomy seminar > > Time & location: Friday April 26, 10:30 in FC61 > > Speaker: Ernst de Mooij (Dublin University) > > Title: Characterising the Atmospheres and Circumplanetary Environment > of Exoplanets > > Abstract: > Since the discovery of the first planet outside our solar-system > almost 25 years ago, the field of exoplanet research has made a lot of > progress. Not only has the number of known exoplanets increased to > over 3000, the atmospheres for a number of exoplanets have been > detected. These atmospheric studies have mainly been made for > transiting planets. For these planets is not only possible to study > their atmosphere in emission/reflection during the secondary eclipse > and through their phase-curve, but also in transmission during the > transit. I will show that ground-based telescopes can be used to reach > the high precision required to detect the atmospheric signatures, > while long-term monitoring with space-based telescopes allows us to > start and probe dynamics in the atmospheres of alien worlds. Finally, > I will show how we can use high-resolution spectroscopy to search for > rings around exoplanets. > > 26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52 > 3/5 (Fri) @ 10:30: Michelle Collins (Surrey) > 10/5 (Fri) @ 10:30: Open slot, NO SEMINAR scheduled (yet) > 17/5 (Fri) @ 10:30: Karin Lind (MPIA) > 24/5 (Fri) @ 10:30: Dainis Dravins (Lund University) > > All welcome! Alexis Brandeker (Astronomy seminar organiser VT 2019) > From seminars-announce.astro-at-su.se at lists.su.se Mon Apr 29 09:30:51 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 29 Apr 2019 09:30:51 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 3/5, 10:30 FC61: Michelle Collins In-Reply-To: <16abd6b1-1cc2-f2c8-d4a2-b1102a349166@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <16abd6b1-1cc2-f2c8-d4a2-b1102a349166@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday May 3, 10:30 in FC61 Speaker: Michelle Collins (Surrey) Title: Dwarfs galaxies as a key to better understanding dark matter and star formation Abstract: Dwarf galaxies have long been seen as a challenge to the Lambda Cold Dark Matter paradigm. Key issues include (1) the missing satellite problem; (2) the too-big-to-fail problem; (3) the cusp-core problem; and (4) the planes of satellites. In this talk, I will discuss how combining observations of nearby dwarf galaxies in differing environments with new high-resolution simulations are allowing us to better understand each of these issues. With these tools, we can begin to place tighter constraints on star formation and dark matter in the smallest galaxies. Upcoming events: 10/5 (Fri) @ 10:30: Open slot, NO SEMINAR scheduled (yet) 17/5 (Fri) @ 10:30: Karin Lind (MPIA) 24/5 (Fri) @ 10:30: Dainis Dravins (Lund University) All welcome! Alexis Brandeker (Astronomy seminar organiser VT 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri May 3 10:08:53 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 3 May 2019 08:08:53 +0000 Subject: [Astronomy seminar] reminder: Astronomy seminar Today at 10:30 FC61: Michelle Collins References: <0fcfddfb-de4c-85fe-db50-89818c659df8@astro.su.se> Message-ID: FYI Begin forwarded message: From: Alexis Brandeker > Subject: [alla at astro.su.se] Astronomy seminar Friday 3/5, 10:30 FC61: Michelle Collins Date: 29 April 2019 at 09:30:51 CEST To: All at Stockholm Observatory > Astronomy seminar Time & location: Friday May 3, 10:30 in FC61 Speaker: Michelle Collins (Surrey) Title: Dwarfs galaxies as a key to better understanding dark matter and star formation Abstract: Dwarf galaxies have long been seen as a challenge to the Lambda Cold Dark Matter paradigm. Key issues include (1) the missing satellite problem; (2) the too-big-to-fail problem; (3) the cusp-core problem; and (4) the planes of satellites. In this talk, I will discuss how combining observations of nearby dwarf galaxies in differing environments with new high-resolution simulations are allowing us to better understand each of these issues. With these tools, we can begin to place tighter constraints on star formation and dark matter in the smallest galaxies. Upcoming events: 10/5 (Fri) @ 10:30: Open slot, NO SEMINAR scheduled (yet) 17/5 (Fri) @ 10:30: Karin Lind (MPIA) 24/5 (Fri) @ 10:30: Dainis Dravins (Lund University) All welcome! Alexis Brandeker (Astronomy seminar organiser VT 2019) ------------------------------------------------------- Angela Adamo Assistant professor Department of Astronomy, Stockholm University and Oskar Klein Centre SE-10691 Stockholm - Sweden tel: +46 (0)8 5537 8556 email: angela.adamo at astro.su.se http://ttt.astro.su.se/~adamo ------------------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Sun May 12 09:37:27 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Sun, 12 May 2019 09:37:27 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 17/5 10:30 FC61: Karin Lind In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday May 17, 10:30 in FC61 Speaker: Karin Lind (MPI Heidelberg) Title: Astronomy seminar - Lithium in the Galaxy: To Be or not to Be Abstract: The astronomical community’s interest in Li continues to be vastly disproportional to its small abundance. The Li content of stars in the Galaxy links together several different research fields; from cosmology and Big Bang nucleosynthesis, to cosmic ray spallation in the interstellar medium, to mixing processes in stellar interiors, and even the presence of exoplanets. I will describe the intricate abundance patterns found for stars in different evolutionary phases and how the fragile nature of this light element makes it an excellent diagnostic tool for late-type stellar evolution all they way from the pre-main sequence to the tip of the asymptotic giant branch. I will further discuss some famous problems related to Li production and depletion and potential solutions in the light of improved models of stars and their spectra. Jaime de la Cruz Rodriguez will host the seminar. Upcoming events: 24/5 (Fri) @ 10:30: Dainis Dravins (Lund University) 31/5 (Fri) @ 10:30: No seminar (klämdag) 7/6 (Fri) @ 10:30: No seminar (klämdag) 14/6 (Fri) @ 10:30: Christian Herenz (SU Astronomy) All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) From seminars-announce.astro-at-su.se at lists.su.se Mon May 20 07:09:34 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 20 May 2019 07:09:34 +0200 Subject: [Astronomy seminar] Astronomy seminar 24/5 at 10:30 FC61: Dainis Dravins In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday May 24, 10:30 in FC61 Speaker: Dainis Dravins (Lund University) Title: Radial Velocities and Wavelength Shifts -- Stellar Spectra and Exoplanet Detection Next upcoming events: 31/5 (Fri) @ 10:30: No seminar (klämdag) 7/6 (Fri) @ 10:30: No seminar (klämdag) 14/6 (Fri) @ 10:30: Christian Herenz (SU Astronomy) All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) From seminars-announce.astro-at-su.se at lists.su.se Tue May 21 11:04:05 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Tue, 21 May 2019 11:04:05 +0200 Subject: [Astronomy seminar] Astronomy seminar 24/5 at 10:30 FC61: Dainis Dravins In-Reply-To: <4f3320bd-3004-f7ca-8067-1a97f57957ed@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <4f3320bd-3004-f7ca-8067-1a97f57957ed@astro.su.se> Message-ID: Astronomy seminar (now with abstract) Time & location: Friday May 24, 10:30 in FC61 Speaker: Dainis Dravins (Lund University) Title: Radial Velocities and Wavelength Shifts - Stellar Spectra and Exoplanet Detection Abstract: Highest-precision radial velocities are needed both to find Earth-like exoplanets and to follow the expansion of the Universe.  While the required instrumentation is becoming available, limitations are now set by the physics of spectral-line formation.  Dynamical motions in stellar atmospheres cause spectral lines to become asymmetric and their wavelengths to “flicker”.  3-D hydrodynamic models reveal patterns of wavelength displacements across stellar disks and such models can now be tested also for stars other than the Sun, exploiting exoplanet transits.  Differential spectroscopy between various transit phases provide spectra of small stellar surface segments temporarily hidden behind the planet.  Ongoing exoplanet surveys are likely to find additional suitable host stars for spatially resolved stellar spectroscopy, identifying routes toward finding “true” Earth analogs. Next upcoming events: 31/5 (Fri) @ 10:30: No seminar (klämdag) 7/6 (Fri) @ 10:30: No seminar (klämdag) 14/6 (Fri) @ 10:30: Christian Herenz (SU Astronomy) All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) On 2019-05-20 7:09 , Alexis Brandeker wrote: > Astronomy seminar > > Time & location: Friday May 24, 10:30 in FC61 > > Speaker: Dainis Dravins (Lund University) > > Title: Radial Velocities and Wavelength Shifts -- Stellar Spectra and > Exoplanet Detection > > Next upcoming events: > 31/5 (Fri) @ 10:30: No seminar (klämdag) > 7/6 (Fri) @ 10:30: No seminar (klämdag) > 14/6 (Fri) @ 10:30: Christian Herenz (SU Astronomy) > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > > From seminars-announce.astro-at-su.se at lists.su.se Fri May 24 09:09:14 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 24 May 2019 09:09:14 +0200 Subject: [Astronomy seminar] Astronomy seminar TODAY at 10:30 FC61: Dainis Dravins In-Reply-To: <68e8ad3a-fa74-9d54-6aa9-48925ebd0e97@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <4f3320bd-3004-f7ca-8067-1a97f57957ed@astro.su.se> <68e8ad3a-fa74-9d54-6aa9-48925ebd0e97@astro.su.se> Message-ID: On 2019-05-21 11:04, Alexis Brandeker wrote: > Astronomy seminar (now with abstract) > > Time & location: Friday May 24, 10:30 in FC61 > > Speaker: Dainis Dravins (Lund University) > > Title: Radial Velocities and Wavelength Shifts - Stellar Spectra and > Exoplanet Detection > > Abstract: > Highest-precision radial velocities are needed both to find Earth-like > exoplanets and to follow the expansion of the Universe. While the > required instrumentation is becoming available, limitations are now set > by the physics of spectral-line formation.  Dynamical motions in stellar > atmospheres cause spectral lines to become asymmetric and their > wavelengths to “flicker”.  3-D hydrodynamic models reveal patterns of > wavelength displacements across stellar disks and such models can now be > tested also for stars other than the Sun, exploiting exoplanet > transits.  Differential spectroscopy between various transit phases > provide spectra of small stellar surface segments temporarily hidden > behind the planet.  Ongoing exoplanet surveys are likely to find > additional suitable host stars for spatially resolved stellar > spectroscopy, identifying routes toward finding “true” Earth analogs. > > Next upcoming events: > 31/5 (Fri) @ 10:30: No seminar (klämdag) > 7/6 (Fri) @ 10:30: No seminar (klämdag) > 14/6 (Fri) @ 10:30: Christian Herenz (SU Astronomy) > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > > > On 2019-05-20 7:09 , Alexis Brandeker wrote: > > Astronomy seminar > > > > Time & location: Friday May 24, 10:30 in FC61 > > > > Speaker: Dainis Dravins (Lund University) > > > > Title: Radial Velocities and Wavelength Shifts -- Stellar Spectra and > > Exoplanet Detection > > > > Next upcoming events: > > 31/5 (Fri) @ 10:30: No seminar (klämdag) > > 7/6 (Fri) @ 10:30: No seminar (klämdag) > > 14/6 (Fri) @ 10:30: Christian Herenz (SU Astronomy) > > > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Jun 10 06:11:55 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 10 Jun 2019 06:11:55 +0200 Subject: [Astronomy seminar] Astronomy seminar 14/6 at 10:30 FC61: Christian Herenz In-Reply-To: <4f3320bd-3004-f7ca-8067-1a97f57957ed@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <4f3320bd-3004-f7ca-8067-1a97f57957ed@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday June 14, 10:30 in FC61 Speaker: Christian Herenz (SU) Title: Deciphering Lyman alpha emitting galaxies with integral field spectroscopy Abstract: Lyman alpha emitting high-redshift galaxies offer insights into galaxy formation processes in the young universe. Moreover, they can be used to address cosmological questions regarding the "Epoch of Reionisation" and the nature of dark energy. In my talk I will show how integral field spectroscopy (IFS) is a viable observational technique for such studies. In particular, I will detail how we use IFS data to understand Lyman alpha escape mechanisms in a sample of nearby high-redshift analogues. I will then show how we use the revolutionary IFS instrument MUSE for conducting surveys of Lyman emitting galaxies in the redshift range 3 < z < 6. Here I will provide an overview over the latest results from those campaigns, with a particular focus on luminosity function studies. My talk will conclude with new (preliminary) results from a 17.5 hour MUSE integration of an extremely luminous extended z=3.1 Lyman alpha emitter known as 'Lyman Alpha Blob 1'. This is the last seminar of the spring semester. First event in the autumn will be 30/8 (Fri) @ 10:30: Emir Karamehmetoglu (PhD thesis presentation, TBD) All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) From seminars-announce.astro-at-su.se at lists.su.se Wed Aug 28 22:30:42 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Wed, 28 Aug 2019 22:30:42 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 30/8 10:30 FC61: Emir Karamehmetoglu In-Reply-To: <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday August 30, 10:30 in FC61 Speaker: Emir Karamehmetoglu (SU Astronomy) Title: Extremes of Stripped Envelope Supernovae Abstract: The observational study of supernovae is undergoing a revolution brought about by wide-field synoptic surveys. The abundance of data offers insights into one of the biggest mysteries in the field; what are the ultimate fates of high-mass stars? Recent work in the field has suggested a lack of SNe associated with the most massive stars. In this talk, I will present the PhD work that I have been leading into stripped-envelope (SE) supernovae (SNe), which are thought to have high-mass origins. First, I will present the first systematic search for SE SNe that are associated with the highest mass stars, which found a largely unexplored population of extremely high-mass SE SNe. Next, I will move on to a rare sub-type of circumstellar interacting SE SNe called Type Ibn. Whose origin could also be linked to extremely high-mass stars. Upcoming seminars: 6/9 (Fri) @ 10:30: Per Bjerkeli (Chalmers) 13/9 (Fri) @ 10:30: Carina Persson (Chalmers) 20/9 (Fri) @ 10:30: [CANCELLED: John Miller (Oxford)] 27/9 (Fri) @ 10:30:Katja Poppenhaeger (Potsdam) All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Aug 30 08:58:15 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 30 Aug 2019 08:58:15 +0200 Subject: [Astronomy seminar] Astronomy seminar TODAY 10:30 FC61: Emir Karamehmetoglu In-Reply-To: <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> Message-ID: Pro tip: You can find all currently planned upcoming seminars (and many other events) in the Albanova calendar https://www.albanova.se/events/ Apart from a recently cancelled seminar 20/9 and when in deference to other simultaneous events (like Astronomdagarna, holidays etc), all Astronomy seminar slots (Fri 10:30) have been filled this semester. In the coming month we will also have two PhD defences: 18/9 (Wed) @ 10:00: PhD Defence Emanuel Gafton in FA31 23/9 (Mon) @ 13:00: PhD Defence Anders Nyholm in FB42 All the best, Alexis On 2019-08-28 22:30, Alexis Brandeker wrote: > Astronomy seminar > > Time & location: Friday August 30, 10:30 in FC61 > > Speaker: Emir Karamehmetoglu (SU Astronomy) > > Title: Extremes of Stripped Envelope Supernovae > > Abstract: > The observational study of supernovae is undergoing a revolution > brought about by wide-field synoptic surveys. The abundance of data > offers insights into one of the biggest mysteries in the field; what > are the ultimate fates of high-mass stars? Recent work in the field > has suggested a lack of SNe associated with the most massive stars. In > this talk, I will present the PhD work that I have been leading into > stripped-envelope (SE) supernovae (SNe), which are thought to have > high-mass origins. First, I will present the first systematic search > for SE SNe that are associated with the highest mass stars, which > found a largely unexplored population of extremely high-mass SE SNe. > Next, I will move on to a rare sub-type of circumstellar interacting > SE SNe called Type Ibn. Whose origin could also be linked to extremely > high-mass stars. > > Upcoming seminars: > > 6/9 (Fri) @ 10:30: Per Bjerkeli (Chalmers) > 13/9 (Fri) @ 10:30: Carina Persson (Chalmers) > 20/9 (Fri) @ 10:30: [CANCELLED: John Miller (Oxford)] > 27/9 (Fri) @ 10:30:Katja Poppenhaeger (Potsdam) > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > > From seminars-announce.astro-at-su.se at lists.su.se Mon Sep 2 14:08:46 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 2 Sep 2019 14:08:46 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 6/9 10:30 FC61: Per Bjerkeli In-Reply-To: <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday September 6, 10:30 in FC61 Speaker: Per Bjerkeli (Chalmers) Title: Resolving star and planet formation with ALMA Abstract: Disks around young stars are the sites of planet formation. As such, the physical and chemical structure of disks have direct impact on the formation of planetary bodies. The innermost disk regions are particularly interesting, due to the potential for planet formation. These are also the regions where winds, capable of affecting the disk build-up itself, are launched magnetically. Meanwhile, the only chance of forming a planetary system is around a star at a stage when its circumstellar disk still hosts a sufficient mass reservoir. Until very recently, we have lacked the facilities to provide the necessary observational constraints and insights into what is actually going on the smallest scales and during the earliest stages of solar system formation, meaning it is completely uncharted territory. Within the framework of the "Resolving star formation with ALMA" program, we are targeting young disks and outflows with ALMA in its largest possible configuration (16 km baselines, yielding a resolution of 2-6 au) to examine the relation between early disk evolution, outflow launching, and star- and planet-formation. I will present an overview of the program, focusing on the most recent results. The first resolved images of outflow launching from a disk were reported towards the Class I source TMC1A. Since then, we have continued our observations towards TMC1A and in addition included the younger B335 system in the study. The observations allow us to constrain the structure of the disks, but also to constrain the launching mechanism and the properties of outflows on the smallest scales. Other upcoming activites: 13/9 (Fri) @ 10:30: Carina Persson (Chalmers) 18/9 (Wed) @ 10:00: PhD Defence Emanuel Gafton in FA31 20/9 (Fri) @ 10:30: [CANCELLED: John Miller (Oxford)] 23/9 (Mon) @ 13:00: PhD Defence Anders Nyholm in FB42 27/9 (Fri) @ 10:30:Katja Poppenhaeger (Potsdam) All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Sep 6 09:41:40 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 6 Sep 2019 09:41:40 +0200 Subject: [Astronomy seminar] Astronomy seminar TODAY 10:30 FC61: Per Bjerkeli In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> Message-ID: On 2019-09-02 14:08 , Alexis Brandeker wrote: > Astronomy seminar > > Time & location: Friday September 6, 10:30 in FC61 > > Speaker: Per Bjerkeli (Chalmers) > > Title: Resolving star and planet formation with ALMA > > Abstract: > Disks around young stars are the sites of planet formation. As such, > the physical and chemical structure of disks have direct impact on the > formation of planetary bodies. The innermost disk regions are > particularly interesting, due to the potential for planet formation. > These are also the regions where winds, capable of affecting the disk > build-up itself, are launched magnetically. Meanwhile, the only chance > of forming a planetary system is around a star at a stage when its > circumstellar disk still hosts a sufficient mass reservoir. Until very > recently, we have lacked the facilities to provide the necessary > observational constraints and insights into what is actually going on > the smallest scales and during the earliest stages of solar system > formation, meaning it is completely uncharted territory. > > Within the framework of the "Resolving star formation with ALMA" > program, we are targeting young disks and outflows with ALMA in its > largest possible configuration (16 km baselines, yielding a resolution > of 2-6 au) to examine the relation between early disk evolution, > outflow launching, and star- and planet-formation. I will present an > overview of the program, focusing on the most recent results. The > first resolved images of outflow launching from a disk were reported > towards the Class I source TMC1A. Since then, we have continued our > observations towards TMC1A and in addition included the younger B335 > system in the study. The observations allow us to constrain the > structure of the disks, but also to constrain the launching mechanism > and the properties of outflows on the smallest scales. > > > Other upcoming activites: > > 13/9 (Fri) @ 10:30: Carina Persson (Chalmers) > 18/9 (Wed) @ 10:00: PhD Defence Emanuel Gafton in FA31 > 20/9 (Fri) @ 10:30: [CANCELLED: John Miller (Oxford)] > 23/9 (Mon) @ 13:00: PhD Defence Anders Nyholm in FB42 > 27/9 (Fri) @ 10:30:Katja Poppenhaeger (Potsdam) > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > From seminars-announce.astro-at-su.se at lists.su.se Mon Sep 9 07:33:15 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 9 Sep 2019 07:33:15 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 13/9 10:30 FC61: Carina Persson In-Reply-To: <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday September 13, 10:30 in FC61 Speaker: Carina Persson (Chalmers) Title: Exoplanet discovery and characterisation Abstract: Observations during the last decade have uncovered large populations of exoplanets without any counterparts in our own planetary system. This diversity has been one of the major discoveries. One of the most powerful tools in the hunt for new exoplanets is dedicated space mission surveys using the technique of ultra-high precision transit photometry. This allows not only discoveries of new planets, but also measurements of the radius relative to the host star and orbital parameters. By combining the photometry from space missions with ground-based radial velocity measurements, true planet masses and bulk densities can be obtained. But although more than 4000 exoplanets have been detected to date, mainly by the Kepler space telescope, far fewer have been fully characterised and hence the composition and internal structure for most exoplanets are unknown. Only a few tens of Super-Earths have been securely identified. This paucity is related to the faintness of the target stars and a new generation of spacecrafts is therefore specifically targeting bright stars. NASA's TESS spacecraft, launched in April 2018, is an all sky survey mission of short period planets orbiting bright stars which will enable precise follow-up observations. CHEOPS (Characterising Exoplanet Satellite), to be launched 17 Dec 2019, is a European mission equipped with ultra-high precision photometers. The targets will be bright stars already known to host exoplanets and will be observed individually. The European PLATO mission with a launch in 2026 is a next-generation planet-hunter with an emphasis on rocky planets in the habitable zone around solar-type stars. In this talk, I will give an overview of our work at Chalmers and the collaboration with the international KESPRINT consortium. Other upcoming activites: 18/9 (Wed) @ 10:00: PhD Defence Emanuel Gafton in FA31 20/9 (Fri) @ 10:30: [CANCELLED: John Miller (Oxford)] 23/9 (Mon) @ 13:00: PhD Defence Anders Nyholm in FB42 27/9 (Fri) @ 10:30: Katja Poppenhaeger (Potsdam) 4/10 (Fri) @ 10:30: Tim Dietrich (Amsterdam) All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Fri Sep 13 07:58:29 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 13 Sep 2019 07:58:29 +0200 Subject: [Astronomy seminar] Astronomy seminar TODAY 10:30 FC61: Carina Persson In-Reply-To: <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> Message-ID: On 2019-09-09 07:33, Alexis Brandeker wrote: > Astronomy seminar > > Time & location: Friday September 13, 10:30 in FC61 > > Speaker: Carina Persson (Chalmers) > > Title: Exoplanet discovery and characterisation > > Abstract: > Observations during the last decade have uncovered large populations > of exoplanets without any counterparts in our own planetary system. > This diversity has been one of the major discoveries. One of the most > powerful tools in the hunt for new exoplanets is dedicated space > mission surveys using the technique of ultra-high precision transit > photometry. This allows not only discoveries of new planets, but also > measurements of the radius relative to the host star and orbital > parameters. By combining the photometry from space missions with > ground-based radial velocity measurements, true planet masses and bulk > densities can be obtained. But although more than 4000 exoplanets have > been detected to date, mainly by the Kepler space telescope, far fewer > have been fully characterised and hence the composition and internal > structure for most exoplanets are unknown. Only a few tens of > Super-Earths have been securely identified. This paucity is related to > the faintness of the target stars and a new generation of spacecrafts > is therefore specifically targeting bright stars. NASA's TESS > spacecraft, launched in April 2018, is an all sky survey mission of > short period planets orbiting bright stars which will enable precise > follow-up observations. CHEOPS (Characterising Exoplanet Satellite), > to be launched 17 Dec 2019, is a European mission equipped with > ultra-high precision photometers. The targets will be bright stars > already known to host exoplanets and will be observed individually. > The European PLATO mission with a launch in 2026 is a next-generation > planet-hunter with an emphasis on rocky planets in the habitable zone > around solar-type stars. In this talk, I will give an overview of our > work at Chalmers and the collaboration with the international KESPRINT > consortium. > > Other upcoming activites: > > 18/9 (Wed) @ 10:00: PhD Defence Emanuel Gafton in FA31 > 20/9 (Fri) @ 10:30: [CANCELLED: John Miller (Oxford)] > 23/9 (Mon) @ 13:00: PhD Defence Anders Nyholm in FB42 > 27/9 (Fri) @ 10:30: Katja Poppenhaeger (Potsdam) > 4/10 (Fri) @ 10:30: Tim Dietrich (Amsterdam) > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Sep 23 10:25:32 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 23 Sep 2019 10:25:32 +0200 Subject: [Astronomy seminar] =?utf-8?q?Astronomy_seminar_Friday_27/9_10=3A?= =?utf-8?q?30_FC61=3A_Katja_Poppenh=C3=A4ger?= In-Reply-To: <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> Message-ID: Astronomy seminar Time & location: Friday September 27, 10:30 in FC61 Speaker: Katja Poppenhäger (AIP, Potsdam) Title: Understanding the evolution of star-exoplanet systems Abstract: Stars and their exoplanets evolve together over billions of years, just like our own solar system.  Many known exoplanetary systems have planets orbiting their host stars at much closer distances than we observe in the solar system, with orbital periods of only a few days.  In such systems one  expects  the  star  and  its close-in  planet  to  interact  through  tidal and magnetic forces, tying their evolution together.  These interactions can give us insights into fundamental properties of star- planet systems which are hard to constrain otherwise:  the time scale over which close-in planets spiral into the star, the evolution of stellar activity, and the amount of atmospheric evaporation and the habitability for all planets in a system with a close-in planet.  Gaia and other telescopes have now opened up new pathways to measure how stars and planets interact with each other.  I will present new approaches to test for planet-induced influences on stars through wide binary systems, motivate a new look at stellar magnetic activity measurements,  and discuss how planetary atmospheres can evaporate over the lifetime of exoplanets. Also TODAY 23/9 @ 13:00: PhD Defence Anders Nyholm in FB42 4/10 (Fri) @ 10:30: Tim Dietrich (Amsterdam) 11/10 (Fri) @ 10:30: *POSTPONED TO 2020-02-07* John Airy (SU Science Education) 18/10 (Fri) @ 10:30: Marta Silva (Oslo ITA) 24-26/10 (Thu-Sat): Astronomdagarna All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) On 2019-09-09 7:33 , Alexis Brandeker wrote: > Astronomy seminar > > Time & location: Friday September 13, 10:30 in FC61 > > Speaker: Carina Persson (Chalmers) > > Title: Exoplanet discovery and characterisation > > Abstract: > Observations during the last decade have uncovered large populations > of exoplanets without any counterparts in our own planetary system. > This diversity has been one of the major discoveries. One of the most > powerful tools in the hunt for new exoplanets is dedicated space > mission surveys using the technique of ultra-high precision transit > photometry. This allows not only discoveries of new planets, but also > measurements of the radius relative to the host star and orbital > parameters. By combining the photometry from space missions with > ground-based radial velocity measurements, true planet masses and bulk > densities can be obtained. But although more than 4000 exoplanets have > been detected to date, mainly by the Kepler space telescope, far fewer > have been fully characterised and hence the composition and internal > structure for most exoplanets are unknown. Only a few tens of > Super-Earths have been securely identified. This paucity is related to > the faintness of the target stars and a new generation of spacecrafts > is therefore specifically targeting bright stars. NASA's TESS > spacecraft, launched in April 2018, is an all sky survey mission of > short period planets orbiting bright stars which will enable precise > follow-up observations. CHEOPS (Characterising Exoplanet Satellite), > to be launched 17 Dec 2019, is a European mission equipped with > ultra-high precision photometers. The targets will be bright stars > already known to host exoplanets and will be observed individually. > The European PLATO mission with a launch in 2026 is a next-generation > planet-hunter with an emphasis on rocky planets in the habitable zone > around solar-type stars. In this talk, I will give an overview of our > work at Chalmers and the collaboration with the international KESPRINT > consortium. > > Other upcoming activites: > > 18/9 (Wed) @ 10:00: PhD Defence Emanuel Gafton in FA31 > 20/9 (Fri) @ 10:30: [CANCELLED: John Miller (Oxford)] > 23/9 (Mon) @ 13:00: PhD Defence Anders Nyholm in FB42 > 27/9 (Fri) @ 10:30: Katja Poppenhaeger (Potsdam) > 4/10 (Fri) @ 10:30: Tim Dietrich (Amsterdam) > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > From seminars-announce.astro-at-su.se at lists.su.se Fri Sep 27 09:12:00 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 27 Sep 2019 09:12:00 +0200 Subject: [Astronomy seminar] =?utf-8?q?Astronomy_seminar_TODAY_10=3A30_FC6?= =?utf-8?q?1=3A_Katja_Poppenh=C3=A4ger?= In-Reply-To: <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> Message-ID: On 2019-09-23 10:25, Alexis Brandeker wrote: > Astronomy seminar > > Time & location: Friday September 27, 10:30 in FC61 > > Speaker: Katja Poppenhäger (AIP, Potsdam) > > Title: Understanding the evolution of star-exoplanet systems > > Abstract: > Stars and their exoplanets evolve together over billions of years, just > like our own solar system.  Many known exoplanetary systems have planets > orbiting their host stars at much closer distances than we observe in > the solar system, with orbital periods of only a few days. In such > systems one  expects  the  star  and  its close-in  planet to > interact  through  tidal and magnetic forces, tying their evolution > together.  These interactions can give us insights into fundamental > properties of star- planet systems which are hard to constrain > otherwise:  the time scale over which close-in planets spiral into the > star, the evolution of stellar activity, and the amount of atmospheric > evaporation and the habitability for all planets in a system with a > close-in planet.  Gaia and other telescopes have now opened up new > pathways to measure how stars and planets interact with each other.  I > will present new approaches to test for planet-induced influences on > stars through wide binary systems, motivate a new look at stellar > magnetic activity measurements,  and discuss how planetary atmospheres > can evaporate over the lifetime of exoplanets. > > Also TODAY 23/9 @ 13:00: PhD Defence Anders Nyholm in FB42 > > 4/10 (Fri) @ 10:30: Tim Dietrich (Amsterdam) > 11/10 (Fri) @ 10:30: *POSTPONED TO 2020-02-07* John Airy (SU Science > Education) > 18/10 (Fri) @ 10:30: Marta Silva (Oslo ITA) > 24-26/10 (Thu-Sat): Astronomdagarna > > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Sep 30 09:17:08 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 30 Sep 2019 09:17:08 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 4/10 10:30 FC61: Tim Dietrich In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <73e3d781-ccb4-c7f6-f27c-df1639e55c0c@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> Message-ID: Astronomy Seminar Time & location: Friday October 4, 10:30 in FC61 Speaker: Tim Dietrich (Amsterdam) Title: The multi-messenger picture of merging neutron stars Abstract: With the detection of the binary neutron star merger GW170817, a new era of multi-messenger astronomy started. GW170817 demonstrated that neutron star mergers are ideal laboratories for constraining the equation of state of cold supranuclear matter, to study the central engines of short GRBs, to understand the origin and production of heavy elements, and to measure the expansion rate of the Universe. We discuss how the last milliseconds before and after the merger can be investigated with full 3D numerical relativity simulations. We present results from state-of-the-art numerical relativity simulations covering large areas of the binary neutron star parameter space and we explain how these simulations help to develop gravitational wave and electromagnetic models. These models allow us to constrain the unknown equation of state of cold supranuclear matter and in the future might even be helpful to determine the dark matter content in our Universe. I will conclude with a short review of the first months of the ongoing observing run of the LIGO and Virgo gravitational wave detectors with respect to binary neutron star candidates. 11/10 (Fri) @ 10:30: No scheduled seminar 18/10 (Fri) @ 10:30: Marta Silva (Oslo ITA) 24-26/10 (Thu-Sat): Astronomdagarna 8/11 (Fri) @ 10:30: Nikki Zabela (Cardiff) Also see https://www.albanova.se/events/seminars/ for scheduled seminars. All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Oct 4 08:09:12 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 4 Oct 2019 07:09:12 +0100 Subject: [Astronomy seminar] Astronomy seminar TODAY 10:30 FC61: Tim Dietrich In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> Message-ID: On 2019-09-30 8:17 , Alexis Brandeker wrote: > Astronomy Seminar > > Time & location: Friday October 4, 10:30 in FC61 > > Speaker: Tim Dietrich (Amsterdam) > > Title: The multi-messenger picture of merging neutron stars > > Abstract: > With the detection of the binary neutron star merger GW170817, a new > era of multi-messenger astronomy started. GW170817 demonstrated that > neutron star mergers are ideal laboratories for constraining the > equation of state of cold supranuclear matter, to study the central > engines of short GRBs, to understand the origin and production of > heavy elements, and to measure the expansion rate of the Universe. We > discuss how the last milliseconds before and after the merger can be > investigated with full 3D numerical relativity simulations. We present > results from state-of-the-art numerical relativity simulations > covering large areas of the binary neutron star parameter space and we > explain how these simulations help to develop gravitational wave and > electromagnetic models. These models allow us to constrain the unknown > equation of state of cold supranuclear matter and in the future might > even be helpful to determine the dark matter content in our Universe. > I will conclude with a short review of the first months of the ongoing > observing run of the LIGO and Virgo gravitational wave detectors with > respect to binary neutron star candidates. > > 11/10 (Fri) @ 10:30: No scheduled seminar > 18/10 (Fri) @ 10:30: Marta Silva (Oslo ITA) > 24-26/10 (Thu-Sat): Astronomdagarna > 8/11 (Fri) @ 10:30: Nikki Zabela (Cardiff) > > Also see https://www.albanova.se/events/seminars/ for scheduled seminars. > > All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) > From seminars-announce.astro-at-su.se at lists.su.se Mon Oct 14 18:21:10 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 14 Oct 2019 18:21:10 +0200 Subject: [Astronomy seminar] Astronomy seminar Friday 18/10 10:30 FC61: Marta Silva In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <06e6ab12-d334-0dc6-3406-caa4f9200846@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> Message-ID: Astronomy Seminar Time & location: Friday October 18, 10:30 in FC61 Speaker: Marta Silva (Oslo ITA) Title: Line Intensity Mapping: Mapping Large-Scale Structure Evolution over cosmic times Abstract: Line-intensity mapping (LIM) is an emerging technique to explore galaxy and structure evolution over cosmic times. A large number of undergoing LIM missions are competing for the first auto-correlation detection, which is expected in the next couple of years. On the other hand, efforts are being made to plan for third-generation missions which will not only detect the target signals but will map line emission over large volumes tracing LSS and its time evolution. These next-generation missions will measure IGM and galaxy properties as well as put precise constraints on the cosmology of our Universe. This talk focuses on new strategies for processing and interpreting the first sets of observational data for LIM of galaxy lines and on the current plans and science prospects for 3rd generation LIM missions. Upcoming events: 24-26/10 (Thu-Sat): Astronomdagarna 8/11 (Fri) @ 10:30: Nikki Zabela (Cardiff) 15/11 (Fri) @ 10:30: Angela Adamo (SU Astronomy) Also see https://www.albanova.se/events/seminars/ for scheduled seminars. All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Oct 18 07:14:46 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 18 Oct 2019 07:14:46 +0200 Subject: [Astronomy seminar] Astronomy seminar TODAY 10:30 FC61: Marta Silva In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <557b5ef0-3ef3-cce9-f175-7b29baed2eeb@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> Message-ID: On 2019-10-14 18:21, Alexis Brandeker wrote: > Astronomy Seminar > > Time & location: Friday October 18, 10:30 in FC61 > > Speaker: Marta Silva (Oslo ITA) > > Title: Line Intensity Mapping: Mapping Large-Scale Structure Evolution > over cosmic times > > Abstract: > Line-intensity mapping (LIM) is an emerging technique to explore galaxy > and structure evolution over cosmic times. A large number of undergoing > LIM missions are competing for the first auto-correlation detection, > which is expected in the next couple of years. On the other hand, > efforts are being made to plan for third-generation missions which will > not only detect the target signals but will map line emission over large > volumes tracing LSS and its time evolution. These next-generation > missions will measure IGM and galaxy properties as well as put precise > constraints on the cosmology of our Universe. This talk focuses on new > strategies for processing and interpreting the first sets of > observational data for LIM of galaxy lines and on the current plans and > science prospects for 3rd generation LIM missions. > > Upcoming events: > > 24-26/10 (Thu-Sat): Astronomdagarna > 8/11 (Fri) @ 10:30: Nikki Zabela (Cardiff) > 15/11 (Fri) @ 10:30: Angela Adamo (SU Astronomy) > > Also see https://www.albanova.se/events/seminars/ for scheduled seminars. > > All welcome! > Alexis Brandeker (Astronomy seminar organiser 2019) > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Nov 4 08:47:27 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 4 Nov 2019 08:47:27 +0100 Subject: [Astronomy seminar] Astronomy seminar Friday 8/11: 10:30 FC61: Nikki Zabela In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <27861198-f683-1a05-5f79-c4163607cd25@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> Message-ID: Astronomy Seminar Time & location: Friday November 8, 10:30 in FC61 Speaker: Nikki Zabela (Cardiff) Title:  How does the galaxy cluster environment affect molecular gas and star formation? - The ALMA Fornax Cluster Survey Abstract: When many galaxies crowd together in a small space, the environment gets harsher and more stressful for them. As a result, they wear out more quickly and retire younger than their peers in less populated areas: their star formation is quenched rapidly. This is why in galaxy clusters we find a large fraction of early-type galaxies compared to late-type spirals, which are much more common in the field.  It has been known for a while that the responsible mechanisms for this early quenching, such as ram pressure stripping, galaxy-galaxy interactions, and starvation, play a significant role in removing the atomic gas from galaxies. If they are able to also directly affect the much more tightly bound and centrally located molecular gas, is less obvious. Since this gas is the direct fuel for star formation, this would have important implications for the evolution of cluster galaxies, and, with many galaxies residing in clusters and groups, galaxy evolution in the universe. With the ALMA Fornax Cluster Survey we study the molecular gas in Fornax cluster galaxies to find out whether the molecular gas in cluster galaxies can be removed directly through these processes, and how this affects their star formation. Upcoming events: 15/11 (Fri) @ 10:30: Angela Adamo (SU Astronomy) 22/11 (Fri) @ 10:30: Johan Fynbo (NBI) 29/11 (Fri) @ 10:30: Liisa Husu (Örebro University) Also see https://www.albanova.se/events/seminars/ for scheduled seminars. All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) From seminars-announce.astro-at-su.se at lists.su.se Fri Nov 8 10:27:41 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 8 Nov 2019 10:27:41 +0100 Subject: [Astronomy seminar] NOW: Astronomy seminar Friday 8/11: 10:30 FC61: Nikki Zabela In-Reply-To: <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> Message-ID: On 2019-11-04 7:47 , Alexis Brandeker wrote: > Astronomy Seminar > > Time & location: Friday November 8, 10:30 in FC61 > > Speaker: Nikki Zabela (Cardiff) > > Title:  How does the galaxy cluster environment affect molecular gas and > star formation? - The ALMA Fornax Cluster Survey > > Abstract: > When many galaxies crowd together in a small space, the environment gets > harsher and more stressful for them. As a result, they wear out more > quickly and retire younger than their peers in less populated areas: > their star formation is quenched rapidly. This is why in galaxy clusters > we find a large fraction of early-type galaxies compared to late-type > spirals, which are much more common in the field.  It has been known for > a while that the responsible mechanisms for this early quenching, such > as ram pressure stripping, galaxy-galaxy interactions, and starvation, > play a significant role in removing the atomic gas from galaxies. If > they are able to also directly affect the much more tightly bound and > centrally located molecular gas, is less obvious. Since this gas is the > direct fuel for star formation, this would have important implications > for the evolution of cluster galaxies, and, with many galaxies residing > in clusters and groups, galaxy evolution in the universe. With the ALMA > Fornax Cluster Survey we study the molecular gas in Fornax cluster > galaxies to find out whether the molecular gas in cluster galaxies can > be removed directly through these processes, and how this affects their > star formation. > > Upcoming events: > 15/11 (Fri) @ 10:30: Angela Adamo (SU Astronomy) > 22/11 (Fri) @ 10:30: Johan Fynbo (NBI) > 29/11 (Fri) @ 10:30: Liisa Husu (Örebro University) > > Also see https://www.albanova.se/events/seminars/ for scheduled seminars. > > All welcome! > Alexis Brandeker (Astronomy seminar organiser 2019) > > From seminars-announce.astro-at-su.se at lists.su.se Mon Nov 11 08:24:26 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 11 Nov 2019 08:24:26 +0100 Subject: [Astronomy seminar] Astronomy seminar Friday 15/11: 10:30 FC61: Angela Adamo In-Reply-To: <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <57d0cb5f-9f90-8cb1-a0d3-1ca71b5c9a92@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> Message-ID: Astronomy Seminar Time & location: Friday November 15, 10:30 in FC61 Speaker: Angela Adamo (SU Astronomy) Title:  Star clusters as footprints of star formation, stellar feedback and assembly history of galaxies Abstract: Star clusters are gravitationally bound stellar systems commonly formed in star formation events. These systems form in the densest regions of giant molecular clouds and host the majority of the massive stars forming in these regions. A quick look at the cluster population in our Milky Way already proves that these bound stellar systems have continuously formed during the assembly history of our own galaxy, as witnessed by globular clusters, open clusters, young star clusters. I will present some key results that relates the most recent efforts to link the statistical properties of cluster populations in local galaxies (i.e. mass functions, dissolution time scales, formation efficiency) to the global physical properties of galaxies, such has star formation per unit area, gas surface density,  and dynamics. I will show how key events for galaxy evolution, such as mergers or increased gas fraction change the properties of the stellar clusters formed during these enhanced star formation events, therefore making them tracers of the assembly history of galaxies. I will conclude presenting some preliminary results about the effect of cluster feedback on their immediate surroundings and at galactic scales showing that star clusters are fundamental components of the star formation cycle of galaxies. Upcoming events: 22/11 (Fri) @ 10:30: Johan Fynbo (NBI) 29/11 (Fri) @ 10:30: Liisa Husu (Örebro University) (6/12 (Fri) Supervisor's meeting - full day) 13/12 (Fri) @ 10:30: Stephen Justham (Amsterdam) Also see https://www.albanova.se/events/seminars/ for scheduled seminars. All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) PS For 2020, Arjan Bik and Cristina Barbarino will take over as Astronomy seminar organisers. From seminars-announce.astro-at-su.se at lists.su.se Fri Nov 15 07:51:00 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 15 Nov 2019 08:51:00 +0200 Subject: [Astronomy seminar] Astronomy seminar TODAY @ 10:30 in FC61: Angela Adamo In-Reply-To: <801fdd81-ddb9-a4b7-eae8-615582c3ff35@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> <801fdd81-ddb9-a4b7-eae8-615582c3ff35@astro.su.se> Message-ID: On 2019-11-11 9:24 , Alexis Brandeker wrote: > Astronomy Seminar > > Time & location: Friday November 15, 10:30 in FC61 > > Speaker: Angela Adamo (SU Astronomy) > > Title:  Star clusters as footprints of star formation, stellar feedback > and assembly history of galaxies > > Abstract: > Star clusters are gravitationally bound stellar systems commonly formed > in star formation events. These systems form in the densest regions of > giant molecular clouds and host the majority of the massive stars > forming in these regions. A quick look at the cluster population in our > Milky Way already proves that these bound stellar systems have > continuously formed during the assembly history of our own galaxy, as > witnessed by globular clusters, open clusters, young star clusters. I > will present some key results that relates the most recent efforts to > link the statistical properties of cluster populations in local galaxies > (i.e. mass functions, dissolution time scales, formation efficiency) to > the global physical properties of galaxies, such has star formation per > unit area, gas surface density,  and dynamics. I will show how key > events for galaxy evolution, such as mergers or increased gas fraction > change the properties of the stellar clusters formed during these > enhanced star formation events, therefore making them tracers of the > assembly history of galaxies. I will conclude presenting some > preliminary results about the effect of cluster feedback on their > immediate surroundings and at galactic scales showing that star clusters > are fundamental components of the star formation cycle of galaxies. > > > Upcoming events: > 22/11 (Fri) @ 10:30: Johan Fynbo (NBI) > 29/11 (Fri) @ 10:30: Liisa Husu (Örebro University) > (6/12 (Fri) Supervisor's meeting - full day) > 13/12 (Fri) @ 10:30: Stephen Justham (Amsterdam) > > Also see https://www.albanova.se/events/seminars/ for scheduled seminars. > > All welcome! > Alexis Brandeker (Astronomy seminar organiser 2019) > > PS For 2020, Arjan Bik and Cristina Barbarino will take over as > Astronomy seminar organisers. > > From seminars-announce.astro-at-su.se at lists.su.se Mon Nov 18 11:35:49 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 18 Nov 2019 11:35:49 +0100 Subject: [Astronomy seminar] Astronomy seminar Friday 22/11: 10:30 FC61: Johan Fynbo In-Reply-To: <801fdd81-ddb9-a4b7-eae8-615582c3ff35@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <82230904-d2b5-bda6-61a4-9886d9ab9ec2@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> <801fdd81-ddb9-a4b7-eae8-615582c3ff35@astro.su.se> Message-ID: Astronomy Seminar Time & location: Friday November 22, 10:30 in FC61 Speaker: Johan Fynbo (NBI, Copenhagen) Title: Pieces to the puzzle of Galaxy Formation Abstract: The great debate on the nature of the nebulae will have its 100 years anniversary next year. In the course of those hundred years we have come to understand galaxies as one of the most mind-boggling phenomena in nature with a quantum mechanical origin reflecting conditions in the Universe a tiny fraction of a second after the Big Bang. To understand galaxies we need to involve all aspects of physics from particle, atomic, molecular and solid stare physics. In this talk I will discuss some of the pieces to the puzzle of galaxy formation, namely how we can use sight-lines to quasars to probe the chemical evolution of galaxies at look-back times of 10-13 Gyr. As part of this story I will discuss the issue of dust bias and how new methods for selection of quasars among point-sources on the sky can circumvent this bias. Upcoming events: 29/11 (Fri) @ 10:30: Liisa Husu (Örebro University) (6/12 (Fri) Supervisor's meeting - full day) 13/12 (Fri) @ 10:30: Stephen Justham (Amsterdam) Also see https://www.albanova.se/events/seminars/ for scheduled seminars. All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) PS For 2020, Arjan Bik and Cristina Barbarino will take over as Astronomy seminar organisers. From seminars-announce.astro-at-su.se at lists.su.se Fri Nov 22 05:27:58 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Fri, 22 Nov 2019 05:27:58 +0100 Subject: [Astronomy seminar] Astronomy seminar TODAY 10:30 FC61: Johan Fynbo In-Reply-To: <5a5de15b-a08b-01b3-eee7-32564f481b71@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> <801fdd81-ddb9-a4b7-eae8-615582c3ff35@astro.su.se> <5a5de15b-a08b-01b3-eee7-32564f481b71@astro.su.se> Message-ID: On 2019-11-18 11:35, Alexis Brandeker wrote: > Astronomy Seminar > > Time & location: Friday November 22, 10:30 in FC61 > > Speaker: Johan Fynbo (NBI, Copenhagen) > > Title: Pieces to the puzzle of Galaxy Formation > > Abstract: > The great debate on the nature of the nebulae will have its 100 years > anniversary next year. In the course of those hundred years we have come > to understand galaxies as one of the most mind-boggling phenomena in > nature with a quantum mechanical origin reflecting conditions in the > Universe a tiny fraction of a second after the Big Bang. To understand > galaxies we need to involve all aspects of physics from particle, > atomic, molecular and solid stare physics. In this talk I will discuss > some of the pieces to the puzzle of galaxy formation, namely how we can > use sight-lines to quasars to probe the chemical evolution of galaxies > at look-back times of 10-13 Gyr. As part of this story I will discuss > the issue of dust bias and how new methods for selection of quasars > among point-sources on the sky can circumvent this bias. > > Upcoming events: > 29/11 (Fri) @ 10:30: Liisa Husu (Örebro University) > (6/12 (Fri) Supervisor's meeting - full day) > 13/12 (Fri) @ 10:30: Stephen Justham (Amsterdam) > > Also see https://www.albanova.se/events/seminars/ for scheduled seminars. > > All welcome! > Alexis Brandeker (Astronomy seminar organiser 2019) > > PS For 2020, Arjan Bik and Cristina Barbarino will take over as > Astronomy seminar organisers. > -------------- next part -------------- An HTML attachment was scrubbed... URL: From seminars-announce.astro-at-su.se at lists.su.se Mon Nov 25 11:26:46 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Mon, 25 Nov 2019 11:26:46 +0100 Subject: [Astronomy seminar] Astronomy seminar Friday 29/11: 10:30 FC61: Liisa Husu In-Reply-To: <5a5de15b-a08b-01b3-eee7-32564f481b71@astro.su.se> References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <6bbc6cac-2cfa-2b94-f755-7552e687d302@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> <801fdd81-ddb9-a4b7-eae8-615582c3ff35@astro.su.se> <5a5de15b-a08b-01b3-eee7-32564f481b71@astro.su.se> Message-ID: Astronomy Seminar Time & location: Friday November 29, 10:30 in FC61 Speaker: Liisa Husu (Örebro University) Title: Academic careers and organisations: does gender (still) matter? Abstract: It will soon be twenty years into the millennium; yet we still need to ask: how does gender matter in academia and research, in academic careers and organisations, such as universities and research organisations? What is the state of the art in Sweden, one of the leading countries globally in societal gender equality, and among the most research intensive and innovative societies? For at least for decades, gender equality has been on the agenda of Swedish and Nordic higher education and science policies. The main higher education, research and innovation stakeholders in Sweden have been actively engaged in numerous gender equality promotion actions since the late 1970s. When it comes to gender relations in academia, the picture is more complex. On many key indicators, such as the share of women among full professors, Sweden does not perform much beyond the European average levels. Questions addressed in this lecture include: what kind of old and new gender challenges do today’s doctoral researchers and academics encounter in their academic environments and careers? How does sexism operate in modern academia? Are excellence and gender equality (in)compatible? How can we create more gender equal and inclusive academic organisations where all talent can thrive and advance? Upcoming events: (6/12 (Fri) Supervisor's meeting - full day) 13/12 (Fri) @ 10:30: Stephen Justham (Amsterdam) Also see https://www.albanova.se/events/seminars/ for scheduled seminars. All welcome! Alexis Brandeker (Astronomy seminar organiser 2019) PS For 2020, Arjan Bik and Cristina Barbarino will take over as Astronomy seminar organisers. From seminars-announce.astro-at-su.se at lists.su.se Wed Dec 11 14:55:32 2019 From: seminars-announce.astro-at-su.se at lists.su.se (Astronomy seminar announcements) Date: Wed, 11 Dec 2019 14:55:32 +0100 Subject: [Astronomy seminar] CANCELLED: Astronomy seminar on Fri 13/12 (Stephen Justham) In-Reply-To: References: <583454ab-9f4a-b55e-d9a3-64b6bcbc42ce@astro.su.se> <360ca83f-b352-2188-7d52-b0712782b670@astro.su.se> <489f26b4-d0f5-0ccf-6fc9-26ab65748ab4@astro.su.se> <3aa1a7bb-91a4-cd69-1b85-0430003ee459@astro.su.se> <08abe650-26e1-48b0-eda0-edc217fecc42@astro.su.se> <855aaaad-7167-ffce-90b2-7391d1506f57@astro.su.se> <03d29ab6-4124-2b4b-04fb-1782996d2a67@astro.su.se> <7afa5341-58f9-9263-4266-763409969eba@astro.su.se> <38cf95a3-7913-880d-7b88-c4762b1a8c9c@astro.su.se> <801fdd81-ddb9-a4b7-eae8-615582c3ff35@astro.su.se> <5a5de15b-a08b-01b3-eee7-32564f481b71@astro.su.se> Message-ID: The seminar planned this Friday (by Stephen Justham) has been cancelled, so there are no more astronomy seminars this year. Next year, Arjan Bik and Cristina Barbarino will take over as astronomy seminar organisers. The astronomy seminar spring schedule is now full, starting with the first seminar on 17/1 by Janet Chen (SU Astronomy) and the last one on 12/6 by Sven Wedemeyer (Oslo). All the best, Alexis