Protostars and Planets VI, Heidelberg, July 15-20, 2013
Surviving Gas Expulsion with Substructure
Lee, Paweł L. (University of Sheffield)
Goodwin, Simon P. (University of Sheffield)
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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