期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 494, 期 4, 页码 4687-4694出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/staa1065
关键词
globular clusters: general; dark matter
资金
- College of Science & Mathematics at Colorado State University
We investigate analytically whether in a close encounter with a star, a dark matter (DM) particle can be accelerated above the escape speed of a globular cluster and be ejected. We find that this mechanism is not sufficient to eject a massive, extended DM halo by this time. Combined with observations of isolated globular clusters that may not have had their haloes tidally stripped, these results cast doubt on the scenario in which globular clusters formed in DM haloes.
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