Searching for (and finding!) the most distant quasars
by
Daniel Mortlock(Imperial College, London)
→
Europe/Stockholm
FC61
FC61
Description
Quasars are powerful probes of the early Universe, although until recently it has not been practical to search for quasars beyond a
redshift of z > 6.5 because they have been identified primarily in optical surveys. Using data from the UKIRT Infrared Deep Sky Survey (UKIDSS),
it has been possible to search beyond this optical limit. I will describe the latest results for this survey, focusing on the Bayesian search
methodology and the implications for cosmological reionization and black hole evolution at a redshift of ~7.
