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Dynamical Evolution of Mass-Segregated Clusters

Published online by Cambridge University Press:  01 September 2007

Enrico Vesperini ,
Steve McMillan  and
Simon Portegies Zwart
Enrico Vesperini
Affiliation:
Department of Physics, Drexel University, Philadelphia, PA, USA
Steve McMillan
Affiliation:
Department of Physics, Drexel University, Philadelphia, PA, USA
Simon Portegies Zwart
Affiliation:
Astronomical Institute “Anton Pannekoek” and Section Computational Science, University of Amsterdam
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Abstract

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We present the results of a survey of N-body simulations aimed at exploring the implications of primordial mass segregation on the dynamical evolution of star clusters. We show that, in a mass-segregated cluster, the effect of early mass loss due to stellar evolution is, in general, more destructive than for an unsegregated cluster with the same density profile and leads to shorter lifetimes, a faster initial evolution toward less concentrated structure and flattening of the stellar initial mass function.

Keywords

globular clusters: generalmethods: n-body simulationsstellar dynamics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S246: Dynamical Evolution of Dense Stellar Systems , September 2007 , pp. 181 - 185
Copyright
Copyright © International Astronomical Union 2008

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