Dynamics of Globular Clusters

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Science  03 Aug 1984:
Vol. 225, Issue 4661, pp. 465-472
DOI: 10.1126/science.225.4661.465


In their attempt to reach kinetic equilibrium, through gravitational encounters between separate stars, globular clusters are driven to destruction, with their cores collapsing and their outer regions expanding. The effects of core collapse, which apparently produces x-ray sources, are not yet fully understood, but white dwarfs and neutron stars, probably in binary systems, are thought to be involved, and possibly black holes as well.