On the Ejection of Dark Matter from Globular Clusters
Oct 1, 20198 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 494 (2020) 4, 4687-4694
- Published: Jun 1, 2020
e-Print:
- 1910.00665 [astro-ph.GA]
DOI:
- 10.1093/mnras/staa1065 (publication)
View in:
Citations per year
Abstract: (Oxford University Press)
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.- globular clusters: general
- dark matter
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