RETENTION OF STELLAR-MASS BLACK HOLES IN GLOBULAR CLUSTERS

@article{Morscher2013RETENTIONOS,
  title={RETENTION OF STELLAR-MASS BLACK HOLES IN GLOBULAR CLUSTERS},
  author={Meagan Morscher and Stefan Umbreit and Will M. Farr and Frederic A. Rasio},
  journal={The Astrophysical Journal Letters},
  year={2013},
  volume={763}
}
Globular clusters should be born with significant numbers of stellar-mass black holes (BHs). It has been thought for two decades that very few of these BHs could be retained through the cluster lifetime. With masses ∼10 M☉, BHs are ∼20 times more massive than an average cluster star. They segregate into the cluster core, where they may eventually decouple from the remainder of the cluster. The small-N core then evaporates on a short timescale. This is the so-called Spitzer instability. Here we… 

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