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SUMMARY:POSTPONED - Dr Isobel Romero-Shaw
DTSTART:20230515T130000Z
DTEND:20230515T140000Z
UID:TALK199603@talks.cam.ac.uk
CONTACT:Callum William Fairbairn
DESCRIPTION:Before gravitational-wave astronomy\, we knew of a handful of 
 stellar-mass black holes: those observable in X-ray emission as they accre
 te from a companion. Since the first gravitational wave was detected in 20
 15\, the number of known black holes has rapidly increased. Binary black h
 oles\, observed via their gravitational wave emission as they inspiral and
  merge\, now dominate the stellar graveyard. Black holes observed in gravi
 tational waves are typically more massive than those in X-ray binaries\, w
 hich begs the question: do gravitational waves and X-rays probe different 
 populations of black holes? And if so\, how do each of these populations f
 orm? In this talk\, I will discuss recent work aiming to unearth and disti
 nguish the varying biographies of the stellar graveyard. I will present ne
 w results that hint at the formation channels of both X-ray and gravitatio
 nal-wave sources. I will also explain how the lifetime of a binary black h
 ole can be encoded in its gravitational-wave signal\, particularly the sig
 natures of its orbital eccentricity\, and address issues in translating th
 ese hidden messages.
LOCATION:In Person MR14
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