The Black Hole Mass and Eddington Ratio Distributions of the 2QZ

Details The Black Hole Mass and Eddington Ratio Distributions of the 2QZ The Black Hole Mass and Eddington Ratio Distributions of the 2QZ

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20922304o&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #223.04; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

From the 25000+ AGNs in the 2dF QSO Redshift Survey (2QZ), we select the 5000 AGNs for which the 2QZ spectra provide reliable estimates of the black hole (BH) mass. We measure BH masses with the virial relations and compute the Eddington ratio for each object. We compare the distributions of BH mass and Eddington ratio to those of AGN surveys with complementary coverage in redshift and luminosity. Measurement of these distributions over a range of z and L provides a key observational benchmark for models of AGN evolution and galaxy-BH co-evolution.

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