Dynamical evolution of a cluster of primordial black holes

Abstract

Evolution of a cluster of primordial black holes in the two-body relaxation approximation based on the Fokker-Planck equation is discussed. In our calculation, we consider the self-gravitating cluster with a wide range of black holes masses from $10^{-4}{M}_{\odot }$ up to $100M_{\odot }$ and the total mass $10^5{M}_{\odot }$. Moreover, we included a massive black hole in the cluster center which determines the evolution rate of the density profile in its vicinity.

arXiv commentTo appear in Proceedings of the 23rd Bled Workshop "What Comes Beyond Standard Models", 2020, Bled, Slovenia

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Cited by in corpus (1)

• The Merger Rate of Black Holes in a Primordial Black Hole Cluster