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PRODID:UW-Madison-Physics-Events
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SEQUENCE:2
UID:UW-Physics-Event-5103
DTSTART:20190502T203000Z
DTEND:20190502T221500Z
DTSTAMP:20260415T080544Z
LAST-MODIFIED:20190502T130217Z
LOCATION:4421 Sterling Hall\, Coffee and cookies 3:30 PM\, Talk begins
  3:45 PM
SUMMARY:Implications of gravitational wave detections for stellar astr
 ophysics\, Astronomy Colloquium\, Lidia Oskinova\, University of Potsd
 am
DESCRIPTION:Stars with masses much higher than our Sun end their short
  lives in a gravitational collapse\, leaving neutron stars and black h
 oles behind. The  detections of gravitational waves (GW) brought massi
 ve star astrophysics into the new era. A comprehensive understanding o
 f massive star lives and deaths is urgently required to fully unleash 
 the power of multi-messenger astronomy. In this talk I will briefly re
 view what we presently know about massive stars\, and highlight the ke
 y problems in our current understanding of neutron star and black hole
  progenitors. I will present our recent results from the study of mass
 ive stars in the SMC galaxy\, which suggest that evolutionary paths of
  very massive stars at low and high metallicities are significantly di
 fferent .  Finally\, I will discuss what the recent GW observations al
 ready have told us about massive stars\, and how the different scenari
 os for  the GW progenitors could be tested by massive star astrophysic
 s.<br>
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URL:https://www.physics.wisc.edu/events/?id=5103
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