Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 402, Issue 4, Pages 2441-2452Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2966.2009.16048.x
Keywords
galaxies: active; galaxies: nuclei; quasars: emission lines; quasars: general
Categories
Funding
- National Aeronautics and Space Administration
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We study the M-BH-M-host relation as a function of cosmic time in a sample of 96 quasars from z = 3 to the present epoch. In this paper, we describe the sample, the data sources and the new spectroscopic observations. We then illustrate how we derive M-BH from single-epoch spectra, pointing out the uncertainties in the procedure. In a companion paper, we address the dependence of the ratio between the black hole mass and the host-galaxy luminosity and mass on cosmic time.
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