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Fossil SMBHs in the Milky Way Halo

Published online by Cambridge University Press:  03 June 2010

Jillian Bellovary ,
Fabio Governato  and
Tom Quinn
Jillian Bellovary
Affiliation:
Dept. of Astronomy,University of Washington, PO Box 351580, Seattle, WA 98195, USA Email: jillian@astro.washington.edu
Fabio Governato
Affiliation:
Dept. of Astronomy,University of Washington, PO Box 351580, Seattle, WA 98195, USA Email: jillian@astro.washington.edu
Tom Quinn
Affiliation:
Dept. of Astronomy,University of Washington, PO Box 351580, Seattle, WA 98195, USA Email: jillian@astro.washington.edu
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As galaxies assemble through hierarchical merging, some black holes grow to become the central black holes of massive galaxies; however, others may be stripped via interactions into regions of galaxies where they will remain quiescent. Such objects may be the source of observed off-nuclear intermediate-mass black hole candidates, as detected by Farrell et al. (2009). We use a cosmological N-body simulation of a disk-dominated galaxy (Vc = 140 km s−1, presented by Governato et al. 2009) to examine the formation and merging histories of seed black holes during hierarchical assembly. Our method incorporates star formation, supernova feedback, a physically motivated description of black hole seed creation, growth, and merging.

Keywords

methods: n-body simulationsblack hole physicsgalaxies: evolutiongalaxies: halos
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. 196
Copyright
Copyright © International Astronomical Union 2010

References

Begelman, M. C., Volonteri, M., & Rees, M. J. 2006, MNRAS, 370, 289CrossRefGoogle Scholar
Farrell, S. A., Webb, N. A., Barret, D., Godet, O., & Rodrigues, J. M. 2009, Nature, 460, 73CrossRefGoogle Scholar
Governato, F., et al. 2009, MNRAS, 398, 312CrossRefGoogle Scholar