From ftadd at astro.su.se Mon Jan 11 14:31:59 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 11 Jan 2016 14:31:59 +0100 Subject: [Okc-wp4] EO meeting Message-ID: <0E7B0DC7-0027-47DA-90A7-F9FABA489F24@astro.su.se> Dear all, this Thursday (14 Jan., 13:00-14:00, KTH meeting room, 5th floor) we will have our first EO meeting of this year. Raghnild Lunnan (Caltech/OKC) will give a talk titled: "Superluminous Supernovae from Pan-STARRS and PTF” Here the abstract: %%%%%%%%%%%%%%%% Superluminous supernovae (SLSNe) are a rare class of stellar explosions discovered by wide-field optical transient surveys in the past decade. They are characterized by peak luminosities 10-100 times that of ordinary core-collapse and Type Ia SNe, requiring either an additional energy source beyond Ni decay or an exotic explosion mechanism. In this talk, I will give an overview of SLSN observations and modeling, and highlight recent results from the Pan-STARRS Medium Deep Survey and the Palomar Transient Factory. %%%%%%%%%%%%%%%% cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Jan 14 11:39:48 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 14 Jan 2016 11:39:48 +0100 Subject: [Okc-wp4] Reminder: EO meeting In-Reply-To: <0E7B0DC7-0027-47DA-90A7-F9FABA489F24@astro.su.se> References: <0E7B0DC7-0027-47DA-90A7-F9FABA489F24@astro.su.se> Message-ID: TODAY! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 11 Jan 2016, at 14:31, Francesco Taddia wrote: > > Dear all, > > this Thursday (14 Jan., 13:00-14:00, KTH meeting room, 5th floor) > we will have our first EO meeting of this year. > Raghnild Lunnan (Caltech/OKC) will give a talk titled: > > "Superluminous Supernovae from Pan-STARRS and PTF” > > Here the abstract: > > %%%%%%%%%%%%%%%% > Superluminous supernovae (SLSNe) are a rare class of stellar explosions discovered by wide-field optical transient surveys in the past decade. They are characterized by > peak luminosities 10-100 times that of ordinary core-collapse and Type Ia SNe, requiring either an additional energy source beyond Ni decay or an exotic explosion > mechanism. In this talk, I will give an overview of SLSN observations and modeling, and highlight recent results from the Pan-STARRS Medium Deep Survey and the Palomar > Transient Factory. > %%%%%%%%%%%%%%%% > > cheers > > /Francesco > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Wed Jan 27 15:16:07 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Wed, 27 Jan 2016 15:16:07 +0100 Subject: [Okc-wp4] EO meeting (tomorrow, 13:00-14:00) Message-ID: <03CEE277-0286-467F-9AA1-0A86C765DE86@astro.su.se> Hi all, tomorrow Jon Dumm will give the following talk: Title: Neutrinos: Origins and Connections Abstract: The origins of the astrophysical neutrinos discovered by IceCube continue to elude us, though some scenarios remain more viable than others. I’ll summarize the latest evidence for and against several galactic and extragalactic source candidates, such as extremely high frequency peaked blazars (eHBL). I’ll also give a preview of our latest efforts to send real time alerts from the South Pole to astronomical observatories around the world and highlight the new transient sources within reach. We meet at 13:00 in the usual room (5th floor), cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Wed Jan 27 15:26:39 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Wed, 27 Jan 2016 15:26:39 +0100 Subject: [Okc-wp4] EO meeting (tomorrow, 13:00-14:00) in A5:1041 In-Reply-To: <1453904473340.67014@kth.se> References: <03CEE277-0286-467F-9AA1-0A86C765DE86@astro.su.se> <1453904473340.67014@kth.se> Message-ID: <6DD4BCC2-80E7-4E4B-B96E-1623AD8A982D@astro.su.se> Hi all, tomorrow’s EO meeting will be in A5:1041 and not in the usual KTH room as previously announced, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 27 Jan 2016, at 15:21, Mózsi Kiss wrote: > > Hello Francesco, > > I think the usual room is booked for essentially the whole day tomorrow. (I will be in the meeting for which the room is booked, which is why I suspect that this is the case!) > > Best regards, > Mózsi > > > From: Okc-wp4-at-fysik.su.se > on behalf of Francesco Taddia > > Sent: Wednesday, January 27, 2016 15:16 > To: Okc-wp4 at fysik.su.se > Subject: [Okc-wp4] EO meeting (tomorrow, 13:00-14:00) > > Hi all, > > tomorrow Jon Dumm will give the following talk: > > Title: Neutrinos: Origins and Connections > > Abstract: The origins of the astrophysical neutrinos discovered by IceCube continue to elude us, though some scenarios remain more viable than others. I’ll summarize the latest evidence for and against several galactic and extragalactic source candidates, such as extremely high frequency peaked blazars (eHBL). I’ll also give a preview of our latest efforts to send real time alerts from the South Pole to astronomical observatories around the world and highlight the new transient sources within reach. > > We meet at 13:00 in the usual room (5th floor), > > cheers > > /Francesco > > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Jan 28 10:21:13 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 28 Jan 2016 10:21:13 +0100 Subject: [Okc-wp4] Reminder: EO meeting (13:00-14:00) in A5:1041 In-Reply-To: <6DD4BCC2-80E7-4E4B-B96E-1623AD8A982D@astro.su.se> References: <03CEE277-0286-467F-9AA1-0A86C765DE86@astro.su.se> <1453904473340.67014@kth.se> <6DD4BCC2-80E7-4E4B-B96E-1623AD8A982D@astro.su.se> Message-ID: TODAY!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 27 Jan 2016, at 15:26, Francesco Taddia wrote: > > Hi all, > > tomorrow’s EO meeting will be in A5:1041 and not in the usual KTH room as previously announced, > > cheers > > /Francesco > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > >> On 27 Jan 2016, at 15:21, Mózsi Kiss > wrote: >> >> Hello Francesco, >> >> I think the usual room is booked for essentially the whole day tomorrow. (I will be in the meeting for which the room is booked, which is why I suspect that this is the case!) >> >> Best regards, >> Mózsi >> >> >> From: Okc-wp4-at-fysik.su.se > on behalf of Francesco Taddia > >> Sent: Wednesday, January 27, 2016 15:16 >> To: Okc-wp4 at fysik.su.se >> Subject: [Okc-wp4] EO meeting (tomorrow, 13:00-14:00) >> >> Hi all, >> >> tomorrow Jon Dumm will give the following talk: >> >> Title: Neutrinos: Origins and Connections >> >> Abstract: The origins of the astrophysical neutrinos discovered by IceCube continue to elude us, though some scenarios remain more viable than others. I’ll summarize the latest evidence for and against several galactic and extragalactic source candidates, such as extremely high frequency peaked blazars (eHBL). I’ll also give a preview of our latest efforts to send real time alerts from the South Pole to astronomical observatories around the world and highlight the new transient sources within reach. >> >> We meet at 13:00 in the usual room (5th floor), >> >> cheers >> >> /Francesco >> >> >> ------------------------------------------- >> Francesco Taddia >> Postdoctoral Researcher >> Department of Astronomy >> Stockholm University, Sweden >> ftadd at astro.su.se >> >> >> >> >> >> >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Wed Feb 10 12:24:02 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Wed, 10 Feb 2016 12:24:02 +0100 Subject: [Okc-wp4] EO meeting tomorrow Message-ID: <61492134-B235-45E8-A93A-BA4776CB8408@astro.su.se> Dear all, tomorrow at 13:00 (usual KTH room on the 5th floor) we will have two talks at our EO meeting 1) Stephan Rosswog will talk about “Dynamical Mass Ejection from Binary Neutron Star Mergers”. 2) Michael Burgess will show that “The current Luminosity-Epeak relationship of GRBs does not provide a standard candle via a hierarchical Bayesian analysis”. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Feb 11 09:51:06 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 11 Feb 2016 09:51:06 +0100 Subject: [Okc-wp4] Reminder: EO meeting today! In-Reply-To: <61492134-B235-45E8-A93A-BA4776CB8408@astro.su.se> References: <61492134-B235-45E8-A93A-BA4776CB8408@astro.su.se> Message-ID: TODAY!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 10 Feb 2016, at 12:24, Francesco Taddia wrote: > > Dear all, > > tomorrow at 13:00 (usual KTH room on the 5th floor) we > will have two talks at our EO meeting > > 1) Stephan Rosswog will talk about “Dynamical Mass Ejection from Binary Neutron Star Mergers”. > > 2) Michael Burgess will show that “The current Luminosity-Epeak relationship of GRBs does not provide a standard candle via a hierarchical Bayesian analysis”. > > cheers > > /Francesco > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > > > ------------------------------------------------- > okc-wp4 at albanova.se mailing list -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Fri Feb 12 14:59:09 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Fri, 12 Feb 2016 14:59:09 +0100 Subject: [Okc-wp4] EO meeting on gravitational waves on March 3rd Message-ID: Dear all, our next Extreme Object meeting will be in 3 weeks, on March 3rd. We will discuss several papers about the detection of gravitational waves, I will send the the program as soon as it is defined, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Feb 25 18:45:48 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 25 Feb 2016 18:45:48 +0100 Subject: [Okc-wp4] EO meeting on gravitational waves on March 3rd In-Reply-To: References: Message-ID: <4B8CC982-225F-4986-BFBC-3C5D8CFACB3A@astro.su.se> Dear all, attached you find the program for the next EO meeting, which will be about the detection of gravitational waves. See you next Thursday in the usual KTH meeting room, at 13:00. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 12 Feb 2016, at 14:59, Francesco Taddia wrote: > > Dear all, > > our next Extreme Object meeting will be in 3 weeks, on March 3rd. > We will discuss several papers about the detection of gravitational waves, > I will send the the program as soon as it is defined, > > cheers > > /Francesco > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... 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URL: From ftadd at astro.su.se Thu Mar 3 10:00:23 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 3 Mar 2016 10:00:23 +0100 Subject: [Okc-wp4] EO meeting on gravitational waves on March 3rd In-Reply-To: <4B8CC982-225F-4986-BFBC-3C5D8CFACB3A@astro.su.se> References: <4B8CC982-225F-4986-BFBC-3C5D8CFACB3A@astro.su.se> Message-ID: Dear all, today do not forget to join us for our EO meeting on GW, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 25 Feb 2016, at 18:45, Francesco Taddia wrote: > > Dear all, > > attached you find the program for the next EO meeting, which will be about the detection of gravitational waves. > See you next Thursday in the usual KTH meeting room, at 13:00. > > cheers > > /Francesco > > > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > >> On 12 Feb 2016, at 14:59, Francesco Taddia > wrote: >> >> Dear all, >> >> our next Extreme Object meeting will be in 3 weeks, on March 3rd. >> We will discuss several papers about the detection of gravitational waves, >> I will send the the program as soon as it is defined, >> >> cheers >> >> /Francesco >> ------------------------------------------- >> Francesco Taddia >> Postdoctoral Researcher >> Department of Astronomy >> Stockholm University, Sweden >> ftadd at astro.su.se >> >> >> >> >> >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Mon Mar 14 14:18:09 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 14 Mar 2016 14:18:09 +0100 Subject: [Okc-wp4] EO meeting Message-ID: <1C80E41E-96D5-4A20-B8BF-307C67AF76BC@astro.su.se> Dear all, next EO meeting will be on March 17th (this Thursday, at 13:00, in the usual KTH meeting room on the 5th floor). Juri Poutanen will talk about: "Constraining cold dense matter equation of state using X-ray bursts”. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Mar 17 11:20:56 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 17 Mar 2016 11:20:56 +0100 Subject: [Okc-wp4] Reminder: EO meeting In-Reply-To: <1C80E41E-96D5-4A20-B8BF-307C67AF76BC@astro.su.se> References: <1C80E41E-96D5-4A20-B8BF-307C67AF76BC@astro.su.se> Message-ID: TODAY!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 14 Mar 2016, at 14:18, Francesco Taddia wrote: > > Dear all, > > next EO meeting will be on March 17th (this Thursday, at 13:00, in the usual KTH meeting room on the 5th floor). > Juri Poutanen will talk about: "Constraining cold dense matter equation of state using X-ray bursts”. > > cheers > > /Francesco > > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From juri.poutanen at gmail.com Fri Mar 18 13:29:14 2016 From: juri.poutanen at gmail.com (Juri Poutanen) Date: Fri, 18 Mar 2016 13:29:14 +0100 Subject: [Okc-wp4] Nordita workshop on Accretion onto Magnetised Neutron Stars Message-ID: <5BDF30DE-7712-41B1-9E17-81A02CF824B6@gmail.com> Dear colleagues, in addition to other astroophysics seminars, next week you are welcome to listen to a number of talks devoted to accretion onto magnetized neutron stars (as well as white dwarves). The program is available at the Nordita web site http://www.nordita.org/timetables/?confid=5484 as well as will be shown on the TV screens in Albanova center during the week. For your convenience, it is also attached below. best regards, Juri Poutanen ############################################################ Prof. Juri Poutanen Nordita, Roslagstullsbacken 17, SE-10691 Stockholm, Sweden Phone: +358 400 640684, +46 729 222382 E-mail : juri.poutanen at gmail.com, juri.poutanen at utu.fi; http://users.utu.fi/jurpou/ , http://astrophysics.fi until Feb 2017 on leave from Tuorla Observatory, University of Turku Väisäläntie 20, FIN-21500 Piikkiö, Finland ############################################################## Nordita workshop on accretion onto magnetized neutron stars Stockholm, Sweden March 21-25, 2016 http://www.nordita.org/xraypulsars2016/ Monday, March 21 14.10-15.10 Victor Doroshenko (Tubingen Univ.): Observational view on magnetic fields in X-ray pulsars 15.10-16.10 Konstantin Postnov (Moscow Univ.): Subsonic settling accretion in X-ray pulsars: Theory and observations 16.40-17.10 Harsha Raichur (Nordita): Intensity-resolved CRSF in X-Per/4U 0352+30 Tuesday, March 22 10.00-11.00 Sergey Tsygankov (Univ. of Turku): Propeller effect in X-ray pulsars 11.00-11.30 Pavel Abolmasov (Univ. of Turku): Magnetic angle evolution in accreting neutron stars 11.30-12.00 Alexander Mushtukov (Univ. Amsterdam): Modelling luminosity correlated variations of the cyclotron line energy 14.00-15.00 Valery Suleimanov (Tubingen Univ.): GK Per and EX Hya: intermediate polars with small magnetospheres 15.00-16.00 David Andrews (Swedish Inst. of Space Physics, Uppsala): Magnetospheric Pulsations at Saturn - relevance to pulsar magnetospheres? 16.30-17.10 Matteo Bachetti (INAF, Cagliari): MHD modeling of disk-magnetosphere interaction Wednesday, March 23 10.00-11.00 Alessandro Patruno (Leiden Univ.): Observational Constraints on the Accretion Flow Geometry in Accreting and Transitional Millisecond Pulsars 11.00-12.00 Caroline D’Angelo (Leiden Univ.): Using very faint accreting neutron stars to understand accretion processes 14.00-15.00 Cole Miller (Univ. of Maryland): The Prospects and Challenges of Measuring Neutron Star Masses and Radii using Pulse Profile Modeling 15.00-16.00 Juri Poutanen (Turku/Nordita): Constraining neutron star parameters from pulse profiles, burst spectra and polarization of accreting millisecond pulsars 16.30-17.30 Joonas Nättilä (Univ. of Turku): What do neutron stars actually look like: images in rotating, curved & twisted spacetime Thursday, March 24 10.00-11.00 Matteo Bachetti (INAF, Cagliari): M82 X-2: A *really* ultraluminous X-ray source 11.00-12.00 Alexander Mushtukov (Univ. Amsterdam): Highly magnetized neutron stars at extreme mass accretion rates 14.00-15.00 Anna Chashkina (Univ. of Turku): Accretion disk around a super-Eddington accreting neutron star -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Tue Mar 29 12:21:36 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Tue, 29 Mar 2016 12:21:36 +0200 Subject: [Okc-wp4] Next EO meeting will be on April 14 Message-ID: <19417CD2-C581-4C3A-88C5-48425ABD4FBE@astro.su.se> Hi all, We tried to get some speakers for Thursday EO meeting but got no positive replies. Lets postpone this one - several of us seem to be away for Easter anyway. Next time is then April 14, when Stephan has contacted speakers from both Nordita and the exoplanet-group. As usual, please do sign up to discuss interesting topics. A few papers that appeared recently that could be of interest are: 1) 2016arXiv160307333S , Leo Singer - on distances to GW signals from aLIGO 2) 2016MNRAS.456L..84C, PoGolite - results 3) 2016arXiv160305560F, Fransson, Larsson - Discovery of molecular hydrogen in SN 1987A 4) 2016ApJ...820…23G, Garnavich - Shock Breakout and Early Light Curves of Type II-P Supernovae Observed with Kepler Volunteers and more suggestions are welcome, Best regards Jesper et al. ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Apr 7 13:38:44 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 7 Apr 2016 13:38:44 +0200 Subject: [Okc-wp4] EO meeting (April 14) Message-ID: Dear all, the next EO meeting will be on April 14, at 13:00. Alexandra Veledina will talk about “Optical/X-ray correlation in accreting black hole X-ray binaries and the origin of quasi-periodic oscillations”. Alexis Brandeker will give a talk titled “A ninth planet?”, about the evidences of a new planet in our solar system (https://www.caltech.edu/news/caltech-researchers-find-evidence-real-ninth-planet-49523 ). Regards /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Apr 14 04:31:05 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 14 Apr 2016 04:31:05 +0200 Subject: [Okc-wp4] Reminder: EO meeting (April 14) In-Reply-To: References: Message-ID: <4FF606CD-3A92-4C04-9140-964B4A253580@astro.su.se> TODAY!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 07 Apr 2016, at 13:38, Francesco Taddia wrote: > > Dear all, > > the next EO meeting will be on April 14, at 13:00. > > Alexandra Veledina will talk about “Optical/X-ray correlation in accreting black hole > X-ray binaries and the origin of quasi-periodic oscillations”. > > Alexis Brandeker will give a talk titled “A ninth planet?”, about > the evidences of a new planet in our solar system (https://www.caltech.edu/news/caltech-researchers-find-evidence-real-ninth-planet-49523 ). > > Regards > > /Francesco > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > > > ------------------------------------------------- > okc-wp4 at albanova.se mailing list -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Tue Apr 26 18:29:52 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Tue, 26 Apr 2016 18:29:52 +0200 Subject: [Okc-wp4] EO meeting Message-ID: <5F452071-316B-4F2E-8410-273D9A35A0D1@astro.su.se> Dear all, we have to cancel our usual EO meeting as we could not find any volunteer for Thursday, you are very welcome to present something in two weeks, please contact us if you intend to do so. Regards /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Mon May 9 10:05:55 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 9 May 2016 10:05:55 +0200 Subject: [Okc-wp4] Extreme Object meeting (May 12) Message-ID: <9D9AA824-BD88-4AD3-A5D2-2FABB289B598@astro.su.se> Hi all, this week Christoffer Fremling will present two papers on supernova iPTF13bvn and its progenitor. We meet on the 5th floor (KTH meeting room) at 13:00, as usual, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu May 12 08:42:40 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 12 May 2016 08:42:40 +0200 Subject: [Okc-wp4] Extreme Object meeting (May 12) In-Reply-To: <9D9AA824-BD88-4AD3-A5D2-2FABB289B598@astro.su.se> References: <9D9AA824-BD88-4AD3-A5D2-2FABB289B598@astro.su.se> Message-ID: This is a reminder for today’s talk by Christoffer. Before the summer break we will have other three EO meetings, on the following dates and with the following speakers: 1) On June 2nd Joonas Nättilä will talk about “Raytracing in twisted spacetimes” 2) On June 16th we will host Ulrich Noebauer (talk TBD) 3) On June 23rd Marek Abramowicz will be our speaker (talk TBD). More information later, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 09 May 2016, at 10:05, Francesco Taddia wrote: > > Hi all, > > this week Christoffer Fremling will present two papers on supernova iPTF13bvn and > its progenitor. We meet on the 5th floor (KTH meeting room) at 13:00, as usual, > > cheers > > /Francesco > > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > > > ------------------------------------------------- > okc-wp4 at albanova.se mailing list -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Sun May 29 11:48:36 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Sun, 29 May 2016 11:48:36 +0200 Subject: [Okc-wp4] EO meeting on June 2nd Message-ID: <11F0EE5B-959B-4530-9A7F-AEF218C19FE8@astro.su.se> Hi all, this Thursday (02/06,13:00-14:00) we will have Joonas Nättilä talking about “Raytracing in twisted spacetimes” at our usual EO meeting, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Jun 2 08:12:45 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 2 Jun 2016 08:12:45 +0200 Subject: [Okc-wp4] Reminder: EO meeting on June 2nd In-Reply-To: <11F0EE5B-959B-4530-9A7F-AEF218C19FE8@astro.su.se> References: <11F0EE5B-959B-4530-9A7F-AEF218C19FE8@astro.su.se> Message-ID: <8A891FEB-9FFD-413F-8E32-51B198678352@astro.su.se> TODAY!!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 29 May 2016, at 11:48, Francesco Taddia wrote: > > Hi all, > > this Thursday (02/06,13:00-14:00) we will have > Joonas Nättilä talking about “Raytracing in twisted spacetimes” > at our usual EO meeting, > > cheers > > /Francesco > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From stephan.rosswog at astro.su.se Thu Jun 2 12:44:08 2016 From: stephan.rosswog at astro.su.se (Stephan Rosswog) Date: Thu, 2 Jun 2016 10:44:08 +0000 Subject: [Okc-wp4] Kind Reminder: Raytracing in curved spacetime In-Reply-To: <8A891FEB-9FFD-413F-8E32-51B198678352@astro.su.se> References: <11F0EE5B-959B-4530-9A7F-AEF218C19FE8@astro.su.se> <8A891FEB-9FFD-413F-8E32-51B198678352@astro.su.se> Message-ID: <3028DA3A-4BC0-42C3-99E3-C3561FF343B7@astro.su.se> Dear all This is just a kind reminder: Joonas Nättilä will explain at 13:00 how neutron stars “really look like”. Best Stephan On 02 Jun 2016, at 08:12, Francesco Taddia > wrote: TODAY!!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se On 29 May 2016, at 11:48, Francesco Taddia > wrote: Hi all, this Thursday (02/06,13:00-14:00) we will have Joonas Nättilä talking about “Raytracing in twisted spacetimes” at our usual EO meeting, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se ------------------------------------------------- okc-wp4 at albanova.se mailing list -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Mon Jun 13 11:33:50 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 13 Jun 2016 11:33:50 +0200 Subject: [Okc-wp4] EO meeting June 16 Message-ID: <36AC3065-A6B0-4326-8791-5A2F4DF18AE2@astro.su.se> Hi all, this Thursday (13:00-14:00) we will have two talks at our EO meeting: 1) Ulrich Nöbauer will talk about: "Type Ia supernovae within dense carbon-oxygen rich envelopes: a model for 'Super-Chandrasekhar' explosions?" We investigate the consequences of fairly normal Type Ia supernovae being embedded in compact and dense envelopes of carbon and oxygen rich circumstellar material by means of detailed radiation hydrodynamic simulations. Our main focus rests on exploring the effects of the interaction between ejecta and circumstellar material on the ejecta evolution and the broad-band light curve. In our calculations, we find that a strong reverse shock efficiently decelerates and compresses the ejecta material. This leads to a significant broadening of the optical light curve, a longer rise to maximum and a slower decline in the tail phase. During the interaction, substantial radiative energy is generated, which mostly emerges in the extreme ultraviolet and X-ray regime. Only if reprocessing due to radiation--matter interactions is very efficient, a significant boost in the optical light curve is observed. We discuss these findings in particular in the context of the super-luminous event SN 2009dc. As our calculations are able to reproduce a number of its peculiar properties, we conclude that the flavour of the interaction scenario investigated in this work constitutes a promising candidate to explain such 'Super-Chandrasekhar' supernovae. 2) Suhail Dhawan will present: "Near Infrared and bolometric properties of fast-declining SN Ia indicate sub-Chandra progenitors" Dedicated searches for Type Ia supernovae (SN~Ia) have discovered several classes exhibiting photometric and spectroscopic peculiarities. In this study, we characterise the diversity in the near infrared (NIR) and bolometric properties of the class of SN~Ia with fast optical decline rates ($\Delta m_{15}$ \textgreater 1.6) and compare them to normal ($\Delta m_{15}$ $\leq$ 1.6) SN~Ia. Fast-declining show a large range of peak bolometric luminosities ($L_{max}$ differing by upto a factor of $\sim$ 8). The SNe appear to be split into two groups based on their $L_{max}$. All fast-declining SN~Ia with $L_{max}$ \textless 0.3$10^{43}ergs^{-1}$ are spectroscopically classified as 91bg-like and show only a single NIR peak. SNe with $L_{max}$ \textgreater 0.5 $10^{43}ergs^{-1}$ appear to smoothly connect to normal SN~Ia. The total ejecta mass ($M_{ej}$) values for SNe with enough late time data are $\lesssim$ 1 $M_{\odot}$, indicating a sub-Chandrasekhar mass progenitor for these SNe. %%%%%%%%%%%%% cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From francesco.taddia at astro.su.se Thu Jun 16 09:50:09 2016 From: francesco.taddia at astro.su.se (Francesco Taddia) Date: Thu, 16 Jun 2016 07:50:09 +0000 Subject: [Okc-wp4] Reminder: EO meeting June 16 In-Reply-To: <36AC3065-A6B0-4326-8791-5A2F4DF18AE2@astro.su.se> References: <36AC3065-A6B0-4326-8791-5A2F4DF18AE2@astro.su.se> Message-ID: <3EE35D96-8BC5-434F-BD4E-D5851775339A@astro.su.se> Hi all, do not forget our EO meeting today! /francesco On 13 Jun 2016, at 11:33, Francesco Taddia > wrote: Hi all, this Thursday (13:00-14:00) we will have two talks at our EO meeting: 1) Ulrich Nöbauer will talk about: "Type Ia supernovae within dense carbon-oxygen rich envelopes: a model for 'Super-Chandrasekhar' explosions?" We investigate the consequences of fairly normal Type Ia supernovae being embedded in compact and dense envelopes of carbon and oxygen rich circumstellar material by means of detailed radiation hydrodynamic simulations. Our main focus rests on exploring the effects of the interaction between ejecta and circumstellar material on the ejecta evolution and the broad-band light curve. In our calculations, we find that a strong reverse shock efficiently decelerates and compresses the ejecta material. This leads to a significant broadening of the optical light curve, a longer rise to maximum and a slower decline in the tail phase. During the interaction, substantial radiative energy is generated, which mostly emerges in the extreme ultraviolet and X-ray regime. Only if reprocessing due to radiation--matter interactions is very efficient, a significant boost in the optical light curve is observed. We discuss these findings in particular in the context of the super-luminous event SN 2009dc. As our calculations are able to reproduce a number of its peculiar properties, we conclude that the flavour of the interaction scenario investigated in this work constitutes a promising candidate to explain such 'Super-Chandrasekhar' supernovae. 2) Suhail Dhawan will present: "Near Infrared and bolometric properties of fast-declining SN Ia indicate sub-Chandra progenitors" Dedicated searches for Type Ia supernovae (SN~Ia) have discovered several classes exhibiting photometric and spectroscopic peculiarities. In this study, we characterise the diversity in the near infrared (NIR) and bolometric properties of the class of SN~Ia with fast optical decline rates ($\Delta m_{15}$ \textgreater 1.6) and compare them to normal ($\Delta m_{15}$ $\leq$ 1.6) SN~Ia. Fast-declining show a large range of peak bolometric luminosities ($L_{max}$ differing by upto a factor of $\sim$ 8). The SNe appear to be split into two groups based on their $L_{max}$. All fast-declining SN~Ia with $L_{max}$ \textless 0.3$10^{43}ergs^{-1}$ are spectroscopically classified as 91bg-like and show only a single NIR peak. SNe with $L_{max}$ \textgreater 0.5 $10^{43}ergs^{-1}$ appear to smoothly connect to normal SN~Ia. The total ejecta mass ($M_{ej}$) values for SNe with enough late time data are $\lesssim$ 1 $M_{\odot}$, indicating a sub-Chandrasekhar mass progenitor for these SNe. %%%%%%%%%%%%% cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se ------------------------------------------------- okc-wp4 at albanova.se mailing list -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Mon Jun 20 11:04:07 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 20 Jun 2016 11:04:07 +0200 Subject: [Okc-wp4] EO meeting 23/06 Message-ID: <06ADB6A3-1005-454B-BEC0-DE7A385F3FD9@astro.su.se> Dear all, This Thursday (23/06), Marek Abramowicz will give the following talk at our EO meeting (13:00-14:00): Title: "Hyper-Eddington accretion and ULXs" Summary: The ultra-luminous X-ray sources are still a puzzle. There are purely observational proofs that at least a few of them are accreting neutron stars, or stellar mass black holes. However, one cannot say that all ULXs are connected with compact objects with mases not in excess of 100 solar masses. The intermediate mass black holes may still be needed. There is no convincing theoretical model explaining how an acceting system may collimate radiation to highly hyper-Eddington luminosities. I will discuss mostly my most recent papers (with Lasota, Narayan and Sądowski) devoted to these unsolved issues. They are based on up-to-date advanced numerical GRRMHD simulations (GRR = General Relativistic and Radiative) by Sądowski. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Jun 23 09:50:05 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 23 Jun 2016 09:50:05 +0200 Subject: [Okc-wp4] EO meeting 23/06 In-Reply-To: <06ADB6A3-1005-454B-BEC0-DE7A385F3FD9@astro.su.se> References: <06ADB6A3-1005-454B-BEC0-DE7A385F3FD9@astro.su.se> Message-ID: <4ADAEC9B-3E74-468C-9A5C-389B147F15A7@astro.su.se> Do not forget our EO meeting today! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 20 Jun 2016, at 11:04, Francesco Taddia wrote: > > Dear all, > > This Thursday (23/06), Marek Abramowicz will give the following talk at our EO meeting (13:00-14:00): > > Title: "Hyper-Eddington accretion and ULXs" > > Summary: The ultra-luminous X-ray sources are still a puzzle. There > are purely observational proofs that at least a few of them are accreting neutron stars, or stellar mass > black holes. However, one cannot say that all ULXs are connected with compact objects with mases > not in excess of 100 solar masses. The intermediate mass black holes may still be needed. There is > no convincing theoretical model explaining how an acceting system may collimate radiation to > highly hyper-Eddington luminosities. I will discuss mostly my most recent papers (with Lasota, > Narayan and Sądowski) devoted to these unsolved issues. They are based on up-to-date advanced > numerical GRRMHD simulations (GRR = General Relativistic and Radiative) by Sądowski. > > cheers > > /Francesco > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Fri Sep 9 11:23:43 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Fri, 9 Sep 2016 11:23:43 +0200 Subject: [Okc-wp4] EO meetings, time to start again! Message-ID: Dear all, It is time to start our Extreme Object meetings again. As usual, they will be hold Thursdays at 13.00-14.00 on floor 5 at the very East. We plan to start on Sept. 29th. We have tried to make a preliminary schedule, as you can see below. Please put these dates into your calendar, and feel free to volunteer. The talks do not have to be a 60 min lecture, but shorter slots. Typically we would like to have two talks every time. We would like to learn something for example about the new IceCube triggers, or what science came out of POGOlite, or about what LIGO O2 can do? This is the preliminary schedule: September: 29 * Claes: paper on SN 2011fe (Whimper of a Bang: Documenting the Final Days of the Nearby Type Ia Supernova 2011fe, http://adsabs.harvard.edu/abs/2016arXiv160801155S) * Michael: new GRB algorithm for GBM locations October: 13 * ? 27 * Jesper: some recent weird transients * Josefin: on 87A November: 10 * Mattia Bulla: spectro-polarization in SNe Ia 24 * ? December: 15 * Paul Vreeswijk: Superluminous supernovae Hope to see you there! cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Fri Sep 16 14:22:13 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Fri, 16 Sep 2016 14:22:13 +0200 Subject: [Okc-wp4] EO schedule Message-ID: <1D03185B-8778-4F49-AC08-1C9885B7341E@astro.su.se> Hi all, here the updated schedule for the upcoming EO meetings: http://okc.albanova.se/internal/wiki/index.php/Working_Groups:Extreme_Objects#Meeting_schedule we still need speakers for Oct 13, Nov 10, 24 and Dec 15 (we aim to have two talks per session), but we already have at least one speaker for all the dates. Volunteers are very welcome, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Screen Shot 2016-09-16 at 14.21.29.png Type: image/png Size: 201289 bytes Desc: not available URL: From ftadd at astro.su.se Fri Sep 16 14:29:47 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Fri, 16 Sep 2016 14:29:47 +0200 Subject: [Okc-wp4] EO schedule In-Reply-To: <1D03185B-8778-4F49-AC08-1C9885B7341E@astro.su.se> References: <1D03185B-8778-4F49-AC08-1C9885B7341E@astro.su.se> Message-ID: <1EFF2BA2-25CD-496B-BA61-95D30812BC3C@astro.su.se> of course the date in December is not 25, but 15 :) ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 16 Sep 2016, at 14:22, Francesco Taddia wrote: > > Hi all, > > here the updated schedule for the upcoming EO meetings: > > http://okc.albanova.se/internal/wiki/index.php/Working_Groups:Extreme_Objects#Meeting_schedule > > we still need speakers for Oct 13, Nov 10, 24 and Dec 15 (we aim to have two talks per session), > but we already have at least one speaker for all the dates. > > Volunteers are very welcome, > > cheers > > /Francesco > > > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > > > ------------------------------------------------- > okc-wp4 at albanova.se mailing list -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Sun Sep 25 09:33:49 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Sun, 25 Sep 2016 09:33:49 +0200 Subject: [Okc-wp4] EO meeting on Sept. 29 In-Reply-To: <1D03185B-8778-4F49-AC08-1C9885B7341E@astro.su.se> References: <1D03185B-8778-4F49-AC08-1C9885B7341E@astro.su.se> Message-ID: <3BB2B656-521C-43AC-B405-9BD084F09426@astro.su.se> Dear all, our first EO meeting after the summer break will be hold on Sept. 29 (this Thursday), at 13:00-14:00, in the usual KTH meeting room on the 5th floor. We will have two talks: 1) Claes Fransson will talk about a paper on SN 2011fe (Whimper of a Bang: Documenting the Final Days of the Nearby Type Ia Supernova 2011fe, http://adsabs.harvard.edu/abs/2016arXiv160801155S ). 2) Michael Burgess will talk about a new GRB algorithm for GBM locations. see you there, /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 16 Sep 2016, at 14:22, Francesco Taddia wrote: > > Hi all, > > here the updated schedule for the upcoming EO meetings: > > http://okc.albanova.se/internal/wiki/index.php/Working_Groups:Extreme_Objects#Meeting_schedule > > we still need speakers for Oct 13, Nov 10, 24 and Dec 15 (we aim to have two talks per session), > but we already have at least one speaker for all the dates. > > Volunteers are very welcome, > > cheers > > /Francesco > > > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Sep 29 07:09:26 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 29 Sep 2016 07:09:26 +0200 Subject: [Okc-wp4] EO meeting on Sept. 29 In-Reply-To: <3BB2B656-521C-43AC-B405-9BD084F09426@astro.su.se> References: <1D03185B-8778-4F49-AC08-1C9885B7341E@astro.su.se> <3BB2B656-521C-43AC-B405-9BD084F09426@astro.su.se> Message-ID: this is a reminder of our EO meeting! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 25 Sep 2016, at 09:33, Francesco Taddia wrote: > > Dear all, > > our first EO meeting after the summer break will be hold on Sept. 29 (this Thursday), at 13:00-14:00, in the usual KTH meeting room on the 5th floor. > We will have two talks: > 1) Claes Fransson will talk about a paper on SN 2011fe (Whimper of a Bang: Documenting the Final Days of the Nearby Type Ia Supernova 2011fe, http://adsabs.harvard.edu/abs/2016arXiv160801155S ). > 2) Michael Burgess will talk about a new GRB algorithm for GBM locations. > > see you there, > > /Francesco > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > >> On 16 Sep 2016, at 14:22, Francesco Taddia > wrote: >> >> Hi all, >> >> here the updated schedule for the upcoming EO meetings: >> >> http://okc.albanova.se/internal/wiki/index.php/Working_Groups:Extreme_Objects#Meeting_schedule >> >> we still need speakers for Oct 13, Nov 10, 24 and Dec 15 (we aim to have two talks per session), >> but we already have at least one speaker for all the dates. >> >> Volunteers are very welcome, >> >> cheers >> >> /Francesco >> >> >> >> ------------------------------------------- >> Francesco Taddia >> Postdoctoral Researcher >> Department of Astronomy >> Stockholm University, Sweden >> ftadd at astro.su.se >> >> >> >> >> >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Mon Oct 10 11:08:55 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 10 Oct 2016 11:08:55 +0200 Subject: [Okc-wp4] EO meeting this Thursday Message-ID: <6DEFC1FA-42E1-4F7E-B428-7D6C3E49D955@astro.su.se> Dear all, this Thursday we have our EO meeting (at 13:00, KTH meeting room, 5th floor). We will have two talks: 1) Jon Dumm will talk about the new IceCube alerts going out. 2) Tanja Petrushevska will talk about her paper on "High-redshift supernova rates measured with the gravitational telescope A1689" cheers /Francesco P.S.: please remember to register (deadline on Oct 14) for the next OKC day (Nov 16), here the link: http://doodle.com/poll/nn46ptn84qnbb9n8 ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Oct 13 08:59:30 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 13 Oct 2016 08:59:30 +0200 Subject: [Okc-wp4] Reminder: EO meeting this Thursday In-Reply-To: <6DEFC1FA-42E1-4F7E-B428-7D6C3E49D955@astro.su.se> References: <6DEFC1FA-42E1-4F7E-B428-7D6C3E49D955@astro.su.se> Message-ID: <7C4C587D-1A30-4789-A5EC-BEBAA0935C75@astro.su.se> TODAY!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 10 Oct 2016, at 11:08, Francesco Taddia wrote: > > Dear all, > > this Thursday we have our EO meeting (at 13:00, KTH meeting room, 5th floor). > > We will have two talks: > > 1) Jon Dumm will talk about the new IceCube alerts going out. > 2) Tanja Petrushevska will talk about her paper on "High-redshift supernova rates measured with the gravitational telescope A1689" > > cheers > > /Francesco > > P.S.: > > please remember to register (deadline on Oct 14) for the next OKC day (Nov 16), here the link: > > http://doodle.com/poll/nn46ptn84qnbb9n8 > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Fri Oct 14 16:21:34 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Fri, 14 Oct 2016 16:21:34 +0200 Subject: [Okc-wp4] EO volunteers for organising the Klein Bottle Message-ID: Dear all, at the beginning of the December our EO group should organize the Klein Bottle. We are looking for volunteers for the organisation of this event, please let us know if you want to help with that. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Mon Oct 24 15:27:55 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 24 Oct 2016 15:27:55 +0200 Subject: [Okc-wp4] EO meeting Oct 27 Message-ID: <11028EF3-25A6-4012-B8F0-BC9B5795A1F5@astro.su.se> Hi all, this Thursday we will have our usual EO meeting at 13:00. Jesper Sollerman will talk about recent weird transients. Josefin Larsson will updated us on her recent works concerning SN 1987A. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Wed Oct 26 18:11:36 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Wed, 26 Oct 2016 18:11:36 +0200 Subject: [Okc-wp4] EO meeting Oct 27 In-Reply-To: <11028EF3-25A6-4012-B8F0-BC9B5795A1F5@astro.su.se> References: <11028EF3-25A6-4012-B8F0-BC9B5795A1F5@astro.su.se> Message-ID: <94045953-8D96-4D33-A277-5CA2EB195DCB@astro.su.se> Dear all, please notice that tomorrow our EO meeting will be in FC61, on the 6th floor, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 24 Oct 2016, at 15:27, Francesco Taddia wrote: > > Hi all, > > this Thursday we will have our usual EO meeting at 13:00. > > Jesper Sollerman will talk about recent weird transients. > Josefin Larsson will updated us on her recent works concerning SN 1987A. > > cheers > > /Francesco > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From francesco.taddia at astro.su.se Thu Oct 27 11:22:36 2016 From: francesco.taddia at astro.su.se (Francesco Taddia) Date: Thu, 27 Oct 2016 09:22:36 +0000 Subject: [Okc-wp4] EO meeting Oct 27 In-Reply-To: <94045953-8D96-4D33-A277-5CA2EB195DCB@astro.su.se> References: <11028EF3-25A6-4012-B8F0-BC9B5795A1F5@astro.su.se> <94045953-8D96-4D33-A277-5CA2EB195DCB@astro.su.se> Message-ID: <686107FD-5E05-422F-8CB7-AF9B354A19FE@astro.su.se> This is a reminder for our EO meeting, that today will be in FC61, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se On 26 Oct 2016, at 18:11, Francesco Taddia > wrote: Dear all, please notice that tomorrow our EO meeting will be in FC61, on the 6th floor, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se On 24 Oct 2016, at 15:27, Francesco Taddia > wrote: Hi all, this Thursday we will have our usual EO meeting at 13:00. Jesper Sollerman will talk about recent weird transients. Josefin Larsson will updated us on her recent works concerning SN 1987A. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se ------------------------------------------------- okc-wp4 at albanova.se mailing list -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Mon Nov 7 10:30:47 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 7 Nov 2016 10:30:47 +0100 Subject: [Okc-wp4] EO meeting Nov. 10 Message-ID: <674F04F4-D70A-44F6-A982-43A95ACDD3B8@astro.su.se> Dear all, this Thursday we will have Mattia Bulla talking about spectropolarization in Supernovae Type Ia, see you in the KTH meeting room on the 5th floor at 13:00, cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Mon Nov 7 10:32:20 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Mon, 7 Nov 2016 10:32:20 +0100 Subject: [Okc-wp4] EO meeting Nov. 10 In-Reply-To: <674F04F4-D70A-44F6-A982-43A95ACDD3B8@astro.su.se> References: <674F04F4-D70A-44F6-A982-43A95ACDD3B8@astro.su.se> Message-ID: <08C3A9E0-07B4-467C-9438-1006CA4A2EDD@astro.su.se> And i forgot to mention that tomorrow Christoffer Fremling is going to defend his licentiate thesis, you are all welcome to attend: cheers /Francesco http://agenda.albanova.se/conferenceDisplay.py?confId=5966 iPTF13bvn and PTF12os -- Two stripped-envelope supernovae discovered by the intermediate Palomar Transient Factory Tuesday 08 November 2016 from 13:00 to 15:00 at FC61 Speaker : Christoffer Fremling (Stockholm University) Abstract : This thesis is based on research made by the intermediate Palomar Transient Factory [(i)PTF], and it is particularly closely tied to the still ongoing research on the stripped-envelope (SE) supernova (SN), iPTF13bvn (Type Ib), that occurred in the nearby galaxy NGC 5806. This SN was initially thought to have been the explosion of a very massive Wolf-Rayet (WR) star, but I have shown that this is very likely not the case. I suggest instead that the most likely scenario is that iPTF13bvn originated from a binary system where the envelope was stripped off from the SN progenitor by tidal forces from a companion star, in a similar way as for the very well studied Type IIb SN 2011dh. I have also investigated another SE SN, PTF12os (Type IIb), that occurred in the same galaxy as iPTF13bvn, with the conclusion that PTF12os and iPTF13bvn are very similar amongst themselves, and that both of them are also remarkably similar to SN 2011dh, in terms of all of the available observations (light-curves, spectra). Hydrodynamical models have been used to constrain the explosion parameters of iPTF13bvn, PTF12os and SN 2011dh; finding 56Ni masses in the range 0.063 − 0.075 M⊙, ejecta masses in the range 1.85 − 1.91 M⊙. Using the 56Ni-masses derived from our hydrodynamical modeling in combination with nebular models and late-time spectroscopy we were able to constrain the Zero-Age Main Sequence (ZAMS) mass to ∼ 12 M⊙ for iPTF13bvn and ≲ 15 M⊙ for PTF12os. In current stellar evolution models, stars with these masses on the ZAMS cannot lose their hydrogen envelopes and become SE SNe without binary interactions. ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 07 Nov 2016, at 10:30, Francesco Taddia wrote: > > Dear all, > > this Thursday we will have Mattia Bulla talking about spectropolarization in Supernovae Type Ia, > > see you in the KTH meeting room on the 5th floor at 13:00, > > cheers > > /Francesco > > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Nov 10 09:35:38 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 10 Nov 2016 09:35:38 +0100 Subject: [Okc-wp4] Reminder: EO meeting Nov. 10 In-Reply-To: <674F04F4-D70A-44F6-A982-43A95ACDD3B8@astro.su.se> References: <674F04F4-D70A-44F6-A982-43A95ACDD3B8@astro.su.se> Message-ID: <7252D1EA-D331-4713-8BFE-2189FF950A21@astro.su.se> TODAY! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 07 Nov 2016, at 10:30, Francesco Taddia wrote: > > Dear all, > > this Thursday we will have Mattia Bulla talking about spectropolarization in Supernovae Type Ia, > > see you in the KTH meeting room on the 5th floor at 13:00, > > cheers > > /Francesco > > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jesper at astro.su.se Mon Nov 14 09:40:25 2016 From: jesper at astro.su.se (Jesper Sollerman) Date: Mon, 14 Nov 2016 08:40:25 +0000 Subject: [Okc-wp4] Big Questions in Astrophysics Message-ID: <1479112825153.6813@astro.su.se> Big Questions in Astrophysics in Lund on April 4. The day before there will be a Day about Transients! Please do sign up! http://www.astro.lu.se/kawjubilee2017/index.shtml Best regards, Jesper Btw, If you have a favourite slide you want me to show on the OKC day wednesday, please do send it to me. Jesper Sollerman The Oskar Klein Centre, Department of Astronomy, AlbaNova, SE-106 91 Stockholm , Sweden mail: jesper at astro.su.se ; phone:+46 8 5537 8554 http://www.astro.su.se/~jesper/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From francesco.taddia at astro.su.se Tue Nov 22 13:05:07 2016 From: francesco.taddia at astro.su.se (Francesco Taddia) Date: Tue, 22 Nov 2016 12:05:07 +0000 Subject: [Okc-wp4] EO meeting Nov 24 Message-ID: Dear all, this Thursday at our usual EO meeting (at 13:00, KTHM meeting room on the 5th floor), we will have Anders Nyholm talking about: "The bumpy road ahead: What can we learn from re-brightening Type IIn supernovae?" cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Nov 24 10:13:48 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 24 Nov 2016 10:13:48 +0100 Subject: [Okc-wp4] Reminder: EO meeting Nov 24 In-Reply-To: References: Message-ID: <2296D043-92E0-45D0-ABBF-DAD921F66725@astro.su.se> TODAY! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 22 Nov 2016, at 13:05, Francesco Taddia wrote: > > Dear all, > > this Thursday at our usual EO meeting (at 13:00, KTHM meeting room on the 5th floor), > we will have Anders Nyholm talking about: > > "The bumpy road ahead: What can we learn from re-brightening Type IIn supernovae?" > > cheers > > /Francesco > > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Tue Dec 13 13:08:40 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Tue, 13 Dec 2016 13:08:40 +0100 Subject: [Okc-wp4] EO meeting on Dec 15th Message-ID: <7006281B-4478-4093-BA52-B87322E56FE4@astro.su.se> Hi all, on Thursday we have our last EO meeting for this year (as usual at 13:00 in the KTH meeting room on the 5th floor). Paul Vreeswijk from the Weizmann Institute will talk about super-luminous supernovae. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From ftadd at astro.su.se Thu Dec 15 10:38:06 2016 From: ftadd at astro.su.se (Francesco Taddia) Date: Thu, 15 Dec 2016 10:38:06 +0100 Subject: [Okc-wp4] Reminder: EO meeting on Dec 15th In-Reply-To: <7006281B-4478-4093-BA52-B87322E56FE4@astro.su.se> References: <7006281B-4478-4093-BA52-B87322E56FE4@astro.su.se> Message-ID: <256E1033-6AE0-469F-8495-36151B6D1CA0@astro.su.se> TODAY!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se > On 13 Dec 2016, at 13:08, Francesco Taddia wrote: > > Hi all, > > on Thursday we have our last EO meeting for this year (as usual at 13:00 in the KTH meeting room on the 5th floor). > > Paul Vreeswijk from the Weizmann Institute will talk about super-luminous supernovae. > > cheers > > /Francesco > ------------------------------------------- > Francesco Taddia > Postdoctoral Researcher > Department of Astronomy > Stockholm University, Sweden > ftadd at astro.su.se > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jesper at astro.su.se Thu Dec 15 10:39:55 2016 From: jesper at astro.su.se (Jesper Sollerman) Date: Thu, 15 Dec 2016 09:39:55 +0000 Subject: [Okc-wp4] Reminder: EO meeting on Dec 15th In-Reply-To: <256E1033-6AE0-469F-8495-36151B6D1CA0@astro.su.se> References: <7006281B-4478-4093-BA52-B87322E56FE4@astro.su.se>, <256E1033-6AE0-469F-8495-36151B6D1CA0@astro.su.se> Message-ID: <1481794795246.26890@astro.su.se> Since this is the last EO for the year, we may even have an extra macronova-session (Stephan & Ulli?) as well, but all within 1 hr, of course.. Jesper Sollerman The Oskar Klein Centre, Department of Astronomy, AlbaNova, SE-106 91 Stockholm , Sweden mail: jesper at astro.su.se ; phone:+46 8 5537 8554 http://www.astro.su.se/~jesper/ ________________________________ From: Okc-wp4-at-fysik.su.se on behalf of Francesco Taddia Sent: Thursday, December 15, 2016 10:38 To: Okc-wp4 at fysik.su.se Subject: [Okc-wp4] Reminder: EO meeting on Dec 15th TODAY!! ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se On 13 Dec 2016, at 13:08, Francesco Taddia > wrote: Hi all, on Thursday we have our last EO meeting for this year (as usual at 13:00 in the KTH meeting room on the 5th floor). Paul Vreeswijk from the Weizmann Institute will talk about super-luminous supernovae. cheers /Francesco ------------------------------------------- Francesco Taddia Postdoctoral Researcher Department of Astronomy Stockholm University, Sweden ftadd at astro.su.se -------------- next part -------------- An HTML attachment was scrubbed... URL: From emily at astro.su.se Fri Dec 16 14:57:59 2016 From: emily at astro.su.se (Emily Freeland) Date: Fri, 16 Dec 2016 14:57:59 +0100 Subject: [Okc-wp4] Your working group description Message-ID: Hi all, in case you didn't see this in your slack channel, below is a description of your working group for the website. Please let me know if you find anything missing or incorrect. Emily The Extreme Object working group at the Oskar Klein Centre summons researchers working on the most compact and energetic astrophysical objects in the universe. Much of the research connects to transient objects, like supernovae, gamma-ray bursts, active galactic nuclei, and macronovae. Observationally, group members have engagements in the Zwicky Transient Facility to observe transients at optical wavelengths, and in FERMI to detect the transient gamma-ray sky, as well as the IceCube neutrino observatory. A group at KTH has developed their own X-ray polarisation balloon experiment to probe the Crab Nebula and the black hole Cygnus X1. Theoretical work on relativistic hydrodynamics underpins such efforts, just as theoretical exploration of supernova spectral synthesis and prompt emission from gamma-ray bursts accompany the observational programs. The Extreme Object working group meets bi-weekly and meetings often include two presentations from members or visitors. The group leaders are Jesper Sollerman and Francesco Taddia. Join the Extreme Object working group mailing list : https://lists.su.se/mailman/listinfo/okc-wp4-at-fysik.su.se The Extreme Object working group meetings are shown here : http://agenda.albanova.se/categoryDisplay.py?categId=289 The Extreme Object working group slack channel : #okc-eo -------------- next part -------------- An HTML attachment was scrubbed... URL: