Other
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20516703r&link_type=abstract
American Astronomical Society Meeting 205, #167.03; Bulletin of the American Astronomical Society, Vol. 36, p.1620
Other
Scientific paper
We present two complementary determinations of the quasar luminosity function (QLF) based on over 50,000 bright quasars from the SDSS-DR3 quasar catalog and over 5000 faint quasars from the 2dF-SDSS LRG and QSO survey (2SLAQ). With a limiting magnitude of i=19.1 (i=20.2 for z>3) the SDSS-DR3 sample does not reach the "break" in the z<2.2 QLF, but the data allow, for the first time, the determination of the QLF from z=0 to z=5 in a single survey. For z<2.2 the SDSS-DR3 number counts and QLF are in good agreement with the bright end of the QLF from the 2dF QSO Redshift Survey (2QZ). The 2SLAQ sample, on the other hand, is limited to UVX sources (z<3), but with a limit of g=21.85 extends over 2 magnitudes fainter than the "break" and 1 magnitude fainter than the 2QZ sample. We find good agreement with previous results from 2QZ except at the faint end, where the 2SLAQ data indicate a higher density of quasars and thus a steeper QLF slope.
2SLAQ Team
Anderson Scott F.
Bland-Hawthorn Jonathan
Boyle Brian J.
Colless Matthew
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