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Forming binary Black Holes in galactic mergers


Quinn, T R; Roskar, R; Mayer, L; Kazantzidis, S (2010). Forming binary Black Holes in galactic mergers. Bulletin of the American Astronomical Society, 42:485.

Abstract

As galaxies merge in the standard hierarchical scenario of galaxy formation, their central Black Holes also can merge and grow. The violent dynamics of the galaxy merger will deliver a significant amount of gas and stars to the central regions of the galaxy further growing the central Black Hole and fueling an Active Galactic Nucleus.
We perform state-of-art numerical simulations of this merging process using N-body simulations and gas dynamics. These simulations resolved the dynamics in the central kiloparsec of the merging galaxies, and enable us to follow the sinking of the Black Holes to the center via dynamical friction up to the formation of binary Black Holes. Critical to this process is the state of the surrounding gas which we follow with an equation of state that includes star formation and supernova feedback.

This work is supported by a grant from NASA.

As galaxies merge in the standard hierarchical scenario of galaxy formation, their central Black Holes also can merge and grow. The violent dynamics of the galaxy merger will deliver a significant amount of gas and stars to the central regions of the galaxy further growing the central Black Hole and fueling an Active Galactic Nucleus.
We perform state-of-art numerical simulations of this merging process using N-body simulations and gas dynamics. These simulations resolved the dynamics in the central kiloparsec of the merging galaxies, and enable us to follow the sinking of the Black Holes to the center via dynamical friction up to the formation of binary Black Holes. Critical to this process is the state of the surrounding gas which we follow with an equation of state that includes star formation and supernova feedback.

This work is supported by a grant from NASA.

Additional indexing

Item Type:Journal Article, not refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Language:English
Date:January 2010
Deposited On:03 Mar 2011 15:00
Last Modified:19 May 2016 14:35
Publisher:American Institute of Physics
ISSN:0002-7537
Related URLs:http://adsabs.harvard.edu/abs/2010AAS...21545814Q
http://aas.org/publications/baas (Publisher)

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