Dynamical evolution of rotating stellar systems - II. Post-collapse, equal mass system

Details Dynamical evolution of rotating stellar systems - II. Post-collapse, equal mass system Dynamical evolution of rotating stellar systems - II. Post-collapse, equal mass system

2001-09-05

arxiv.org/abs/astro-ph/0109062v1

Mon.Not.Roy.Astron.Soc. 334 (2002) 310

Astronomy and Astrophysics

Astrophysics

12 pages (MNLaTeX), 17 Postscript figures, Submitted to MNRAS

Scientific paper

10.1046/j.1365-8711.2002.05420.x

We present the first post core collapse models of initially rotating star clusters, using the numerical solution of an orbit-averaged 2D Fokker-Planck equation. Based on the code developed by Einsel & Spurzem (1999), we have improved the speed and the stability and included the steady three-body binary heating source. We have confirmed that rotating clusters, whether they are in a tidal field or not, evolve significantly faster than non-rotating ones. Consequences for observed shapes, density distribution, and kinematic properties of young and old star clusters are discussed. The results are compared with gaseous and 1D Fokker-Planck models in the non-rotating case.

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