On the luminosity dependence of quasar clustering
Peder Norberg (Edinburgh ) - 27 Feb at 12:00 noon
We present detailed clustering measurements for a flux limited sample
of ~14,000 quasars extracted from the 2QZ survey in
the redshift range 0.8 < z < 2.1 . We find clear evidence for an increase
of the clustering amplitude with lookback time. Using HOD models, we
find that 2QZ quasars sit in haloes with M > 1012 M_sun and that the
mean mass of their host haloes is of the order of 1013 M_sun.
We then split each redshift interval into several luminosity
intervals, for which we estimate the quasar projected auto and
cross-correlation functions. We find that models with
luminosity dependent clustering tend to be statistically favoured,
but larger datasets are needed to rule out / confirm current models
for luminosity segregation.
The seminar will be held in 544 Campbell Hall.
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