YCAA seminar: “The physics, environment and evolution of early supermassive black holes”, Roberto Gilli - Osservatorio Astronomico di Bologna

Event time: 
Tuesday, May 24, 2016 - 2:30pm
Hours of operation: 

Coffee/tea and cookies will be in the coffee lounge of 52 Hillhouse starting at 2:00 PM. Bring your own mug if you have!

Watson (), A-51 See map
60 Sachem Street
New Haven, CT 06511
Event description: 

The existence of bright QSOs at z>6 shows that black holes as massive
as a few billions of Suns were already in place when the Universe was
less than 1 Gyr old. Theory struggles to explain how these extreme
systems have formed and grown, and is making several - yet untested -
predictions since 15 years.

I will report on some recent observational programs designed at
studying the physics, environment and cosmological evolution of AGN at
very high redshift. These include: i) ALMA observations of QSO hosts
at z~3-6, ii) observations of large-scale galaxy overdensities around
z~6 QSOs; iii) measurements of the luminosity function of z>3 AGN
based on deep X-ray fields such as the CDFS and COSMOS.

Prospects will be finally presented for expanding these programs and
for future mission developments, that may eventually constrain models
of early black hole formation.