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

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 $10^{-14}{M}_{\odot }$ to $10^{-11}{M}_{\odot }$. 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.

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

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• Gravitational-wave Emission from a Primordial Black Hole Inspiraling inside a Compact Star: a Novel Probe for Dense Matter Equation of State
• Strong lensing constraints on primordial black holes as a dark matter candidate
• Gravitational waves from burdened primordial black holes dark matter
• A Robust Test of the Existence of Primordial Black Holes in Galactic Dark Matter Halos
• Primordial black holes: constraints, potential evidence and prospects
• Accretion onto black holes inside neutron stars with piecewise-polytropic equations of state: analytic and numerical treatments
• Rescuing The Primordial Black Holes all-Dark Matter Hypothesis from The Fast Radio Bursts Tension
• Neutrino signals from Neutron Star implosions to Black Holes
• Can QCD Axion Stars explain Subaru HSC microlensing?