articleJournal of Physics G Nuclear and Particle PhysicsOct 27, 2020HYBRID OA

Primordial black holes as a dark matter candidate

AMAnne M GreenBJBradley J Kavanagh

University of Nottingham · Instituto de Física de Cantabria

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Abstract

Abstract The detection of gravitational waves from mergers of tens of Solar mass black hole binaries has led to a surge in interest in primordial black holes (PBHs) as a dark matter candidate. We aim to provide a (relatively) concise overview of the status of PBHs as a dark matter candidate, circa Summer 2020. First we review the formation of PBHs in the early Universe, focussing mainly on PBHs formed via the collapse of large density perturbations generated by inflation. Then we review the various current and future constraints on the present day abundance of PBHs. We conclude with a discussion of the key open questions in this field.

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Authors

2
  • AM
    Anne M GreenCorresponding

    University of Nottingham

  • BJ
    Bradley J Kavanagh

    Instituto de Física de Cantabria

Topics & keywords

Topics
Keywords
  • Primordial black hole
  • Dark matter
  • Gravitational wave
  • Binary black hole
  • Solar mass
  • Hot dark matter
  • Black hole (networking)
  • Gravitational collapse
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