EPJ Web of Conferences
Volume 39, 2012Tidal Disruption Events and AGN Outbursts
|Number of page(s)||4|
|Section||Tidal Disruption Rates and Stellar Dynamics|
|Published online||18 December 2012|
Massive gaseous discs around SMBH binaries: Binary decay and tidal disruptions
1 Departamento de Astronomía y Astrofísica, Pontificia Universidad Católica de Chile, Chile
2 Max-Planck-Institut für Gravitationsphysik (Albert Einstein Institute), Am Mühlenberg 1, 14476 Potsdam, Germany
a e-mail: firstname.lastname@example.org
We investigate the evolution of black hole binaries embedded within geometrically thin gas discs. Our results imply that such discs can produce black hole mergers for relatively low-mass binaries, and that a significant population of eccentric binaries might exist at separations of a few 0.01 pc. These binaries may be detectable due to the time-variable accretion on to the black holes. If the disc fragments, then the newly-born stars will continue driving the binary to its coalescence, although at a slower rate. Interestingly, our preliminary analysis shows that these stars will be disrupted at a rate of ∼10−4–2 · 10−5 events per year per system.
© Owned by the authors, published by EDP Sciences, 2012
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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