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Quasar Mass Functions Across Cosmic Time

Published online by Cambridge University Press:  03 June 2010

Marianne Vestergaard
Marianne Vestergaard*
Affiliation:
DARK Cosmology Centre, Copenhagen University, Juliane Maries Vej 30, 2100 Copenhagen Ø, Denmark Email: vester@dark-cosmology.dk Steward Observatory, University of Arizona, 933 N. Cherry Avenue, Tucson, AZ 85721, USA Dept. of Physics and Astronomy, Tufts University, Robinson Hall, Medford MA 02155, USA
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Abstract

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I present mass functions of actively accreting black holes detected in different quasar surveys which in concert cover a wide range of cosmic history. I briefly address what we learn from these mass functions. I summarize the motivation for such a study and the methods by which we determine black hole masses.

Keywords

galaxies: activequasars: emission linesgalaxies: fundamental parameters (masses)galaxies: mass functiongalaxies: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S267: Co-Evolution of Central Black Holes and Galaxies , August 2009 , pp. 239 - 247
Copyright
Copyright © International Astronomical Union 2010

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