Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344704s&link_type=abstract
American Astronomical Society, AAS Meeting #213, #447.04; Bulletin of the American Astronomical Society, Vol. 41, p.334
Astronomy and Astrophysics
Astronomy
Scientific paper
With the emergence of moderately detailed evolutionary models for supermassive black hole growth in galaxies it is becoming possible to predict evolutionary tracks for the rapid growth phase seen as quasars in, for example, the Mass-Luminosity plane. The Sloan Digital Sky Survey includes 77,429 quasar candidates in their latest data release (DR5). We estimate SMBH masses using the standard method based on reverberation mapping: we use H-beta, MgII, and CIV broad emission line widths and continuum luminosities to construct mass luminosity distributions of SDSS quasars as a function of redshift. This distribution shows several characteristic features. We show typical tracks in this plane for quasars growing predominantly due to luminous accretion. We further use the evolution of the mass-luminosity distribution with redshift to determine how these tracks have changed over time and whether high redshift quasars behave similarly to low-redshift quasars.
Amarie Mihail
Steinhardt Charles L.
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