[Astronomy seminar] Astronomy Department Seminar - February 4th Dan Perley

[Astronomy seminar announcements]

Reminder, Dan's seminar will be in 30 min!

C

On 01/02/2022 10:03, Chris Usher wrote:
>
> On Friday the 4th at 10:30 we have our second seminar of the year with 
> Dan Perley (Liverpool John Moores University) speaking via Zoom.
>
> *A Complete Survey of the Catastrophic Universe*
>
> While it looks static to the naked eye, the night sky is filled with 
> activity: a star explodes somewhere in the observable universe once 
> every second.  The vast majority of these explosions go unheralded, 
> but a new generation of synoptic optical surveys are finally enabling 
> us to systematically chart the entire parameter space of these 
> dramatic endpoints of stellar evolution.  I will describe how we are 
> using the Zwicky Transient Facility to investigate this "zoo" of 
> cosmic explosions. I will first present new measurements of the rates, 
> luminosity functions, and demographics of a variety of 
> well-established supernova types and illustrate how these observations 
> are providing new insights into the connection between the lives and 
> deaths of their massive stellar progenitors.  Then, moving to the 
> extremes of stellar evolution I will summarize our discoveries of the 
> rarest and most energetic explosions: off-axis gamma-ray bursts, 
> "dirty" fireballs from moderately-relativistic jets, direct-collapse 
> events, and kilonovae.
>
> 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 Carolina
>
> Christopher Usher is inviting you to a scheduled Zoom meeting.
>
> Topic: Astronomy Department Seminar - Dan Perley
> Time: Feb 4, 2022 10:30 AM Stockholm
>
> Join Zoom Meeting
> https://stockholmuniversity.zoom.us/j/66820045606?pwd=em5rS2ptMWIwVXVvNkVZL002NWxwZz09 
>
>
> Meeting ID: 668 2004 5606
> Passcode: NSenCIPabo
>
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