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Equal and Unequal-Mass Mergers of Disk and Elliptical Galaxies with Black Holes

Published online by Cambridge University Press:  03 June 2010

Peter H. Johansson ,
Thorsten Naab  and
Andreas Burkert
Peter H. Johansson
Affiliation:
University Observatory Munich, Scheinerstr. 1, D-81679 Munich, Germany Email: pjohan@usm.lmu.de
Thorsten Naab
Affiliation:
University Observatory Munich, Scheinerstr. 1, D-81679 Munich, Germany Email: pjohan@usm.lmu.de
Andreas Burkert
Affiliation:
University Observatory Munich, Scheinerstr. 1, D-81679 Munich, Germany Email: pjohan@usm.lmu.de
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We present binary galaxy merger simulations of gas-rich disks (Sp-Sp), of early-type galaxies and disks (E-Sp, mixed mergers), and mergers of early-type galaxies (E-E, dry mergers) including radiative cooling, star formation, black hole (BH) accretion, and the associated feedback processes. The numerical simulations include cooling, star formation, supernova feedback, and BH accretion modeled following a Bondi–Hoyle accretion parameterization. The maximum accretion rate is limited to the Eddington rate, with a total of 0.5% of the accreted rest-mass energy distributed as thermal energy to the surrounding gas.

Keywords

galaxies: evolutiongalaxies: interactionsgalaxies: structure
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. 461
Copyright
Copyright © International Astronomical Union 2010

References

Johansson, P. H., Naab, T., & Burkert, A. 2009a, ApJ, 690, 802Google Scholar
Johansson, P. H., Burkert, A., & Naab, T. 2009b, ApJ, 707, L184Google Scholar