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Evolution of the MBH–σ and MBH–Lbulge Relations

Published online by Cambridge University Press:  03 June 2010

J.-H. Woo ,
N. V. Bennert ,
T. Treu ,
M. Malkan  and
R. Blandford
J.-H. Woo
Affiliation:
Seoul National University, Republic of Korea Email: woo@astro.snu.ac.kr
N. V. Bennert
Affiliation:
Dept. of Physics and Astronomy, University of California Santa Barbara, USA Email: bennert@physics.ucsb.edu, tt@physics.ucsb.edu
T. Treu
Affiliation:
Dept. of Physics and Astronomy, University of California Santa Barbara, USA Email: bennert@physics.ucsb.edu, tt@physics.ucsb.edu
M. Malkan
Affiliation:
Dept. of Physics and Astronomy, University of California Los Angeles, USA Email: malkan@astro.ucla.edu
R. Blandford
Affiliation:
Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, USA Email: rdb@slac.stanford.edu
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Abstract

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To constrain the origin of scaling relations between black hole mass and galaxy properties, i.e., stellar velocity dispersion and bulge luminosity, we investigate the evolution of scaling relations in the past 6 Gyrs. Over the last three years, we have obtained high signal-to-noise ratio Keck spectra of ~ 50 intermediate luminosity broad-line AGNs at z ~ 0.4 and z ~ 0.6, to measure stellar velocity dispersion, and HST (ACS and NICMOS) images of the same objects (~ 40 so far), to measure bulge luminosity from the two-dimensional AGN-galaxy decomposition analysis. In this paper, we will summarize the main results on the MBH–σ and MBH–bulge luminosity relations and their evolution to the present-day universe. The measured scaling relations show that the relations have evolved significantly in the past 6 billion years, and that black hole growth predates the final galaxy assembly.

Keywords

black hole physicsgalaxies: evolutiongalaxies: active
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. 183 - 188
Copyright
Copyright © International Astronomical Union 2010

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