Protostars and Planets VI, Heidelberg, July 15-20, 2013

Poster 1G017

Surviving Gas Expulsion with Substructure

Lee, Paweł L. (University of Sheffield)
Goodwin, Simon P. (University of Sheffield)

Abstract:
We simulate the effects of gas expulsion from each of 2,5, or 10 sub-clusters within a larger cluster. Each sub-cluster is a super-virial Plummer sphere placed within a virialised Plummer sphere cluster. We find that the more sub-clusters we have, the greater the fraction of stars that remain bound within the cluster. For an effective star formation efficiency of 25% we find that 70% of the initial mass remains bound when we have 10 sub-clusters, compared to complete destruction for a sub-cluster in isolation.

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