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The Early Stages of Post-Collapse Cluster Evolution

Published online by Cambridge University Press:  04 August 2017

Stephen L. W. McMillan
Stephen L. W. McMillan*
Affiliation:
Department of Physics, University of Illinois at Urbana-Champaign, 1110 W. Green Street Urbana, Illinois 61801, U.S.A.

Extract

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We present here some recent (and very preliminary) findings from a study of the early stages of the post-core-collapse evolution of an isolated cluster of identical point “stars”. The method used to follow the behavior of the system is the unified N-body/statistical treatment described in detail by McMillan and Lightman (1984a) and by Lightman and McMillan elsewhere in this volume. Briefly, the method combines the standard “large-N” and “small-N” approaches to the problem in the régimes where they are appropriate by treating the inner regions (r < rN) exactly with a regularized Aarseth N-body code (Aarseth, 1972), while permitting stars at greater and greater radii to retain less and less of their individual identities, ultimately treating the outer portions of the system (r > KrN) in an almost purely statistical fashion.

Type
May 30: Model System in the Point-Mass Approximation
Information
Symposium - International Astronomical Union , Volume 113: Dynamic of Stars Clusters , 1985 , pp. 331 - 333
Copyright
Copyright © Reidel 1985 

References

Aarseth, S. J., 1971, in The Gravitational N-body Problem, ed. Lecar, M. (Reidel, Dortrecht), p. 373.Google Scholar
Aarseth, S. J., 1974, Astron. Astrophys. 35, 237.Google Scholar
Cohn, H., 1980, Ap. J. 242 765.Google Scholar
Heggie, D. C., 1984, M.N.R.A.S. 206, 179.Google Scholar
McMillan, S. L. W. and Lightman, A. P., 1984a, Ap. J. 283, in press.Google Scholar
McMillan, S. L. W. and Lightman, A. P., 1984b, Ap. J. 283, in press.Google Scholar