BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:The Most Massive Black Holes in the Early Universe - Xiaohui Fan (
 University of Arizona)
DTSTART:20160512T150000Z
DTEND:20160512T160000Z
UID:TALK65573@talks.cam.ac.uk
CONTACT:Simon Hodgkin
DESCRIPTION:High-redshift quasars\, powered by accretion of supermassive b
 lack holes\, provide unique probe to the formation of black holes in the e
 arly universe\, the co-evolution of black holes and their host galaxies\, 
 and the contribution of black accretion to cosmic reionization. I will rev
 iew recent results from new high-redshift quasar surveys\, focusing on the
 \nfirst discoveries of quasars with 10 billion solar mass black holes at t
 he end of reionization\; their existence might require direct collapse of\
 nmassive black hole seeds at early epochs. I will present new ALMA observa
 tions on the host galaxies of luminous z>6 quasars. which have high star f
 ormation rates accompanied by modest host masses\, implying strong evoluti
 on of black hole/galaxy mass relation at high-redshift. I will also discus
 s recent determinations of high-redshift quasar luminosity function\, whic
 h show a surprisingly high characteristic luminosity and call for a re-eva
 luation of the role of AGN in cosmic reionization through a more complete 
 census of faint high-redshift quasar population.\n\n
LOCATION:Sackler Lecture Theatre\, IoA (tea at 3:30 pm)
END:VEVENT
END:VCALENDAR