Affordable Access

deepdyve-link
Publisher Website

The Effect of Pre-Main Sequence Stars on Star Cluster Dynamics

Authors
  • Wiersma, R.
  • Sills, A.
  • Zwart, S. Portegies
Type
Published Article
Publication Date
Oct 07, 2005
Submission Date
Oct 07, 2005
Identifiers
DOI: 10.1086/498562
Source
arXiv
License
Unknown
External links

Abstract

We investigate the effects of the addition of pre-main sequence evolution to star cluster simulations. We allowed stars to follow pre-main sequence tracks that begin at the deuterium burning birthline and end at the zero age main sequence. We compared our simulations to ones in which the stars began their lives at the zero age main sequence, and also investigated the effects of particular choices for initial binary orbital parameters. We find that the inclusion of the pre-main sequence phase results in a slightly higher core concentration, lower binary fraction, and fewer hard binary systems. In general, the global properties of star clusters remain almost unchanged, but the properties of the binary star population in the cluster can be dramatically modified by the correct treatment of the pre-main sequence stage.

Report this publication

Statistics

Seen <100 times