English

Can Primordial Black Holes as all Dark Matter explain Fast Radio Bursts?

High Energy Astrophysical Phenomena 2022-01-12 v2 High Energy Physics - Phenomenology

Abstract

Primordial black holes (PBHs) are one of the most interesting nonparticle dark matter (DM) candidates. They may explain all the DM content in the Universe in the mass regime from about 1014M10^{-14}M_{\odot} to 1011M10^{-11}M_{\odot}. We study PBHs as the source of fast radio bursts (FRBs) via magnetic reconnection in the event of collisions between them and neutron stars (NSs) in galaxies. We investigate the energy loss of PBHs during PBH-NS encounters to model their capture by NSs. To an order-of-magnitude estimation, we conclude that the parameter space of PBHs being all DM is accidentally consistent with that to produce FRBs with a rate which is the order of the observed FRB rate.

Keywords

Cite

@article{arxiv.2108.08717,
  title  = {Can Primordial Black Holes as all Dark Matter explain Fast Radio Bursts?},
  author = {Kimmo Kainulainen and Sami Nurmi and Enrico D. Schiappacasse and Tsutomu T. Yanagida},
  journal= {arXiv preprint arXiv:2108.08717},
  year   = {2022}
}

Comments

6 pages, 3 figures. V2: Updated towards version published in Physical Review D