Scientific article
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Primordial black holes in matter-dominated eras: The role of accretion

Published inPhysics letters. B, vol. 832, 137265
Publication date2022
First online date2022-09-10
Abstract

We consider the role of secondary infall and accretion onto an initially overdense perturbation in matter-dominated eras, like the one which is likely to follow the end of inflation. We show that primordial black holes may form through post-collapse accretion, namely the accretion onto an initial overdensity whose collapse has not given rise to a primordial black hole. Accretion may be also responsible for the growth of the primordial black hole masses by orders of magnitude till the end of the matter-dominated era.

Keywords
  • Black hole: primordial
  • Black hole: mass
  • Black hole: formation
  • Accretion
  • Perturbation
  • Inflation
  • Collapse
  • Density
Citation (ISO format)
DE LUCA, Valerio et al. Primordial black holes in matter-dominated eras: The role of accretion. In: Physics letters. B, 2022, vol. 832, p. 137265. doi: 10.1016/j.physletb.2022.137265
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Article (Published version)
Identifiers
Journal ISSN0370-2693
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24downloads

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