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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-6705
DTSTART:20211111T213000Z
DTEND:20211111T230000Z
DTSTAMP:20260414T191919Z
LAST-MODIFIED:20211012T195719Z
LOCATION:4421 Sterling Hall\, Coffee and Cookies at 3:30 pm\, Talk sta
 rts at 3:45 pm
SUMMARY:The fate of the merger remnant in GW170817 and its imprint on 
 the jet structure\, Astronomy Colloquium\, Ariadna Murguia Berthier\, 
 UCSC/CIERA
DESCRIPTION:On August 17\, 2017\, LIGO/Virgo detected the first gravit
 ational waves from merging neutron stars. This event\, known as GW1708
 17 was accompanied by observations all over the electromagnetic spectr
 um.  The peculiar gamma-ray burst that followed the merger in GW170817
 \, is unlike any gamma-ray burst observed before. In order to explain 
 the afterglow observations\, there is a need for the jet launched afte
 r the merger to have structure\, which is a natural consequence of the
  interaction of the jet with the ambient medium. In this talk\, I will
  show special relativistic simulations of the interaction of the jet w
 ith several outflows launched during the merger and compare the simula
 tions to the observation. I will then use the results in order to cons
 train key properties of the merger\, such as the delay time between th
 e merger and the collapse to a black hole.<br>
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 <br>
\nWe strongly encourage you to attend the colloquium in person. I
 f that is impossible\, it is available over zoom at the following link
 :<br>
\n<br>
\nhttps://us02web.zoom.us/j/88024178440?pwd=Sk5tRXdLVWJTc
 0RkUXEwblRaa3RvQT09
URL:https://www.physics.wisc.edu/events/?id=6705
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