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Dynamical Evolution of Multi-Component Clusters

Published online by Cambridge University Press:  04 August 2017

Shogo Inagaki
Shogo Inagaki*
Affiliation:
Department of Astronomy, University of Kyoto, Kyoto 606 Japan

Abstract

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Presence of stars with disparate masses causes great differences in the dynamical evolution of star clusters from the evolution of single component clusters. One remarkable effect is acceleration of the evolution. Another effect is destabilization or stabilization. In two-component clusters equipartition at the cluster centre is nearly achieved if Spitzer's (1969) condition is satisfied. In multi-component clusters equipartition at the cluster centre is achieved if either the range of stellar mass is very narrow or the mass spectrum is very steep. Global equipartition is never achieved. Post-collapse evolution of multi-component clusters is discussed briefly and some remained problems are presented.

Type
May 30: Model System in the Point-Mass Approximation
Information
Symposium - International Astronomical Union , Volume 113: Dynamic of Stars Clusters , 1985 , pp. 189 - 205
Copyright
Copyright © Reidel 1985 

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