[Astronomy seminar] Astronomy Department Seminar - December 3rd Eliot Ayache

[Astronomy seminar announcements]

Reminder, Eliot is talking in 23 min

C

On 29/11/2021 15:59, Chris Usher wrote:
>
> Hello
>
> On Friday the 3rd at 10:30 we have our next astronomy seminar with 
> Eliot Ayache (Stockholm University) via Zoom.
>
> *The Numerics of Gamma-ray Burst Afterglows Across Scales*
>
> Gamma-ray burst (GRB) afterglows are riddled with multiscale processes 
> in the spatial, temporal, and spectral domains. Accurately capturing 
> the interplay between these processes, and their manifestations at 
> short and long timescales, is the key to uncovering the nature and 
> behavior of the associated progenitor and remnant. I will first focus 
> on direct modeling and show how recent improvements in the treatment 
> of the numerical dynamics, using moving meshes, allow us to 
> correctly, numerically, simulate radiative cooling from non-thermal 
> processes inside the jet. This finally allows for full broadband 
> simulation of time-dependent synchrotron emission in 
> relativistic transients. I will then present results showing how these 
> simulations open the door to the study of complex dynamical behaviors 
> with multiple emission sites (and the associated short-timescale light 
> curve variability), as well as the investigation of the microphysical 
> processes at play inside the jet in the trans-relativistic regime (and 
> the associated late-time effects on the light curve). I will 
> conclude by focusing on the inverse problem and present preliminary 
> results on how state-of-the-art unsupervised machine leaning 
> techniques can provide physical insight into the 
> long-timescale behavior of GRB afterglows.
>
> We are trying something new this year with leaving the Zoom call open 
> after the formal hour of the seminar is up to allow the speaker, if 
> they wish, to chat informally with anyone who is interested.
>
> Thanks
>
> Chris and Tine
>
> Christopher Usher is inviting you to a scheduled Zoom meeting.
>
> Topic: Astronomy Department Seminar - Eliot Ayache
> Time: Dec 3, 2021 10:30 AM Stockholm
>
> Join Zoom Meeting
> https://stockholmuniversity.zoom.us/j/69591012819?pwd=dExIT1hCNjgxNVNZaktMRzBaOXNmUT09 
>
>
> Meeting ID: 695 9101 2819
> Passcode: Mq46qc86Jc
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.su.se/pipermail/seminars-announce.astro-at-su.se/attachments/20211203/ce360848/attachment.html>