[Astronomy seminar] Astronomy departmental seminar November 1 at 10:30am - Dr. Avinash Singh (Stockholm University)

[Astronomy seminar announcements]

Dear all,

This is a gentle reminder for the departmental seminar in around an hour (10:30am) in FC61.

Regards,
Mingjie and Anjasha

From: Alla-at-astro.su.se <alla-at-astro.su.se-bounces at lists.su.se> On Behalf Of Mingjie Jian via Alla-at-astro.su.se
Sent: Monday, October 28, 2024 11:58
To: alla at astro.su.se; seminars-announce.astro-at-su.se at lists.su.se
Subject: [alla at astro.su.se] Astronomy departmental seminar November 1 at 10:30am - Dr. Avinash Singh (Stockholm University)

Dear all,

The next weekly SU astronomy departmental seminar will take place on Friday November 1, at 10:30am in room FC61 (AlbaNova building, 6th floor) and on zoom(https://stockholmuniversity.zoom.us/j/61550693125).

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Speaker:  Dr Avinash Singh (Stockholm University)
Title: Factors shaping the Heterogeneity in Observational Signatures of Hydrogen-rich Supernovae
Event: https://indico.fysik.su.se/event/8825/

Abstract:
Hydrogen-rich supernovae (SNe II) show a wide diversity in their light curves and spectral evolution, shaped by differences in the progenitor stars that produce them, the explosion, and their immediate environment. In this talk, I'll dive into the main factors that contribute to this diversity, including the star's hydrogen envelope mass and radius, explosion energy, metallicity, circumstellar material (CSM), and the amount of radioactive nickel (56Ni) synthesized, as well as the extent of 56Ni mixing within the ejecta. Drawing results from work on several SNe II, I'll look at how these aspects influence early flux excess, light curve decline rates, color evolution, and spectroscopic evolution of line widths and line profiles. I'll also discuss insights from polarimetric observations, which reveal explosion asymmetries, and consider how interactions with the surrounding CSM create distinctive spectral and light curve signatures. Using observational data along with theoretical models, this presentation aims to shed light on the factors that drive the heterogeneity in SNe II and the characteristics of their progenitor systems.

Zoom ID: 615 5069 3125

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We look forward to seeing many of you there. Thanks!

Mingjie and Anjasha

Upcoming Events
- Nov 8 Ella Xi Wang
- Nov 15 Giuseppe Morello
- Nov 22 Brian Thorsbro


You can subscribe to the seminars calendar in:
https://ttt.astro.su.se/ical/astro-seminars.ics
(Please note that calendar can be subject to updates)
___________________

Join Zoom Meeting
https://stockholmuniversity.zoom.us/j/61550693125

Meeting ID: 615 5069 3125


** Just a small note for the people who prefer slack in OKC, we have created a channel here - https://join.slack.com/share/enQtNzY4MzA3MjEzNDA1NC05M2NiY2UzOGRiZjY0YTFhZDZjMzA1ZjkwZjJjYTBiM2JhNzExOGVmMDlkYTBkNjMxMmY3ZTdiY2UzNjcxNzk3

We will be posting updates there as well.


Mingjie Jian
Postdoctoral Researcher
Department of Astronomy
Stockholm University

AlbaNova University Center
Roslagstullsbacken 21,
114 21 Stockholm, Sweden
mingjie.jian at astro.su.se<mailto:mingjie.jian at astro.su.se>

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