Primordial black holes as a dark matter candidate
By A. Green, B. Kavanagh. Journal of Physics G: Nuclear and Particle Physics, 2020
689 citations recorded by the source corpus.
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, focusing 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.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/65c861f157ee22b5ecca9033f72df4d3d5a58423
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Citations in the corpus
- GW231123: A Binary Black Hole Merger with Total Mass 190–265 M⊙ (2025, neutral): “However, there are remaining theoretical uncertainties, e.g., on whether primordial BHs could ac-crete sufficiently to spin up as rapidly as the BHs inferred from GW231123 (Green & Kavanagh 2021).”
- A Brief Review on Primordial Black Holes as Dark Matter (2021, background): “Several recent reviews are devoted to discuss PBHs in great detail (see, e.g., Sasaki et al., 2018; Carr and Kühnel, 2020; Carr et al., 2020; Green and Kavanagh, 2021).”