Survivability of a star cluster in a dispersing molecular cloud

Details Survivability of a star cluster in a dispersing molecular cloud Survivability of a star cluster in a dispersing molecular cloud

2008-04-17

arxiv.org/abs/0804.2734v1

Astronomy and Astrophysics

Astrophysics

9 pages, 16 figures, submitted to MNRAS

Scientific paper

Star clusters are formed in molecular clouds which are believed to be the birth places of most stars. From recent observational data, Lada & Lada 2003 estimated that only 4% to 7% of the clusters embedded inside molecular clouds have survived. An important mechanism for the disruption of embedded (bound)-clusters is the dispersion of the parent cloud by UV radiation, stellar winds and/or supernova explosions. In this work we study the effect of this mechanism by N-body simulations. We find that most embedded-clusters survive for more than 30 Myr even when different initial conditions of the cluster may introduce some minor variations, but the general result is rather robust.

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