N-body simulations show that the heat flux from the cusp of stars surrounding an object of mass M ≡ 10 - 100 M_sun; has a profound effect on the evolution of a cluster of N stars of mass m ≡ 1 M_sun;. A cluster containing an object which is ⪆5% of its total mass expands, transferring most of the cluster binding energy to a few stars deep in the cusp within several central relaxation times. The results suggest that core collapse in a globular cluster will be reversed when the core mass is reduced to ≡10 M_sun;. This result does not depend on whether or not stars are disrupted by the black hole.
Dynamics of Star Clusters
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