BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:The Quasi-star Channel of Supermassive Black Hole Formation - Mitc
 hell Begelman (CU Boulder)
DTSTART:20260319T113000Z
DTEND:20260319T123000Z
UID:TALK244453@talks.cam.ac.uk
CONTACT:Sandro Tacchella
DESCRIPTION:An increasing body of evidence indicates that the seeds of sup
 ermassive black holes had to form very early and grow very rapidly.   An i
 ntriguing mechanism for accomplishing this is via the core collapse of sup
 ermassive stars\, which leaves behind an intermediate-mass black hole embe
 dded in a much more massive envelope from which it accretes at a hyper-Edd
 ington rate.  The properties of such hypothetical objects\, called quasi-s
 tars\, are well-constrained theoretically.  In their latter stages of evol
 ution\, they are predicted to resemble the "Little Red Dots" discovered by
  JWST.  If LRDs are indeed late-stage quasi-stars\, their short predicted 
 lifetimes suggest that the quasi-star channel is an important mode of supe
 rmassive black hole formation and early growth.\n\n
LOCATION:Ryle Seminar Room\, KICC + online
END:VEVENT
END:VCALENDAR