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SUMMARY:Low Mass Black Holes from Dark Core Collapse
DTSTART;VALUE=DATE-TIME:20210830T154500Z
DTEND;VALUE=DATE-TIME:20210830T160000Z
DTSTAMP;VALUE=DATE-TIME:20260716T235620Z
UID:indico-contribution-15809@indico.ific.uv.es
DESCRIPTION:Speakers: Ranjan Laha (Indian Institute of Science\, Bengaluru
 \, India)\nUnusual masses of black holes being discovered by gravitational
  wave experiments pose fundamental questions about the origin of these bla
 ck holes. Black holes with masses smaller than the Chandrasekhar limit $\\
 approx$ 1.4  M$_\\odot$ are essentially impossible to produce through 
 stellar evolution. We propose a new channel for production of low mass bla
 ck holes: stellar objects catastrophically accrete nonannihilating dark ma
 tter\, and the small dark core subsequently collapses\, eating up the host
  star and transmuting it into a black hole. The wide range of allowed dark
  matter masses allows a smaller effective Chandrasekhar limit and thus sma
 ller mass black holes. We point out several avenues to test our proposal\,
  focusing on the redshift dependence of the merger rate. We show that reds
 hift dependence of the merger rate can be used as a probe of the transmute
 d origin of low mass black holes.\n\nhttps://indico.ific.uv.es/event/6178/
 contributions/15809/
LOCATION:
URL:https://indico.ific.uv.es/event/6178/contributions/15809/
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