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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20221129T123000
DTEND;TZID=Atlantic/Canary:20221129T133000
UID:iactalks-1637
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1637
CREATED:2022-11-29T12:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Population synthesis of massive stars with compact companions in th
 e Small Magellanic Cloud 
DESCRIPTION:Population synthesis of massive stars with compact companions i
 n the Small Magellanic Cloud \nChristoph Schürmann\n\nMost high mass X-ra
 y binaries contain neutron stars as  companions to an OB star, while high 
 mass black hole binaries are very  rare. We use rapid binary population sy
 nthesis to predict the number and  properties of OB stars with compact com
 panions, while varying uncertain  physics assumptions. We find that synthe
 tic populations which agree with  the population properties of Be stars, W
 olf-Rayet stars, and neutron  stars forecast a large and so far undetected
  population of massive black  hole binaries with orbital periods between a
  few days and 1000 days. To  find or rule out this population is key for q
 uantifying the contribution  of isolated binaries to the merging massive b
 lack holes found through  their gravitational wave emission.
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