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Dynamical evolution of rotating globular clusters with embedded black holes

Published online by Cambridge University Press:  01 August 2006

José Fiestas  and
Rainer Spurzem
José Fiestas
Affiliation:
Zentrum für Astronomie, Astronomisches Rechen-Institut, Heidelberg, Germany email: fiestas@ari.uni-heidelberg.de, spurzem@ari.uni-heidelberg.de
Rainer Spurzem
Affiliation:
Zentrum für Astronomie, Astronomisches Rechen-Institut, Heidelberg, Germany email: fiestas@ari.uni-heidelberg.de, spurzem@ari.uni-heidelberg.de
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Abstract

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Evolution of rotating globular clusters with embedded black holes is presented. The interplay between velocity diffusion due to relaxation and black hole star accretion is followed together with cluster rotation, using 2-dimensional, in energy and z-component of angular momentum, Fokker Planck numerical methods. Gravogyro and gravothermal instabilities drive the system to a faster evolution leading to shorter collapse times and a faster cluster dissolution in the tidal field of a parent galaxy.

Angular momentum transport and star accretion support the development of central rotation in relaxation time scales. Two-dimensional distribution (in the meridional plane) of kinematical and structural parameters (density, dispersions, rotation) are reproduced, with the aim to enable the use of set of models for comparison with observational data.

Keywords

Gravitation – stellar dynamics – globular clusters: general – black hole physics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S238: Black Holes from Stars to Galaxies – Across the Range of Masses , August 2006 , pp. 363 - 364
Copyright
Copyright © International Astronomical Union 2007

References

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