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Searching for (and finding!) the most distant quasars
  Astronomy and astrophysics

Wednesday 24 February 2016
from 13:15 to 14:15
at FC61
Speaker : Daniel Mortlock (Imperial College, London)
Abstract : 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.

AlbaNova  | Last modified 05 December 2017 10:13  |  HELP