Original upload date: Tue, 29 Jun 2021 00:00:00 GMT
Archive date: Sun, 05 Dec 2021 03:06:17 GMT
Direct N-body simulation of the Galactic globular cluster Palomar 5 with NBODY6++GPU (Wang et al. 2015). The simulations includes the effect of stellar evolution, the Galactic tidal field and gravitat
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ional interactions between stars and black holes. The cluster forms with a "normal" black hole population, but stars are stripped more efficiently than black holes by the Galaxy, such that the black hole fraction gradually increases. At the age of Palomar 5 (11.5 billion years), the mass fraction of black holes is over 20% and in the next billion year the cluster becomes a 100% black hole cluster. For more details see Gieles et al. (2021), Nature Astronomy, DOI:10.1038/s41550-021-01392-2.
