Fast Radio Bursts From Primordial Black Hole Binaries Coalescence

Abstract

In this paper we propose the model that the coalescence of primordial black holes (PBHs) binaries with equal mass $M\sim 10^{28}$g can emit luminous gigahertz (GHz) radio transient, which may be candidate sources for the observed fast radio bursts (FRBs), if at least one black hole holds appropriate amount of net electric charge $Q$. Using a dimensionless quantity for the charge $q=Q/\sqrt{G}M$, our analyses infer that $q\sim O(10^{-4.5})$ can explain the FRBs with released energy of order $O(10^{40})\mathrm{ergs}$. With the current sample of FRBs and assuming a distribution of charge $\varphi (q)$ for all PBHs, we can deduce that its form is proportional to $q^{-3.0\pm 0.1}$ for $q\ge 7.2\times 10^{-5}$ if PBHs are sources of the observed FRBs. Furthermore, with the proposed hypothetical scenario and by estimating the local event rate of FRBs $\sim 2.6\times 10^3{\mathrm{Gpc}}^{-3}{\mathrm{yr}}^{-1}$, one derives a lower bound for the fraction of PBHs (at the mass of $10^{28}$g) against that of matter $f_{\mathrm{PBH}}(10^{28}\mathrm{g})$ $\gtrsim 10^{-5}$ needed to explain the rate. With this inspiring estimate, we expect that future observations of FRBs can help to falsify their physical origins from the PBH binaries coalescences. In the future, the gravitational waves produced by mergers of small black holes can be detected by high frequency gravitational wave detectors. We believe that this work would be a useful addition to the current literature on multimessenger astronomy and cosmology.

7 pages, 1 figure, published in PRD

References in corpus (13)

• A bright millisecond radio burst of extragalactic origin
• Primordial Black Holes as Dark Matter
• Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
• Fast Radio Burst Discovered in the Arecibo Pulsar ALFA Survey
• The merger rate of primordial-black-hole binaries
• Primordial black hole dark matter from single field inflation
• A "Cosmic Comb" Model of Fast Radio Bursts
• Primordial black holes from inflaton and spectator field perturbations in a matter-dominated era
• Laser-interferometric Detectors for Gravitational Wave Background at 100 MHz : Detector Design and Sensitivity
• Electromagnetic Luminosity of the Coalescence of Charged Black Hole Binaries
• Collisions of charged black holes
• On the origin of the scatter broadening of fast radio burst pulses and astrophysical implications
• Black hole formation in a contracting universe

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• Merger rate of charged black holes from the two-body dynamical capture
• On neutralization of charged black holes
• Multi-wavelength and Multi-messenger Counterparts of Fast Radio Bursts
• Revisiting the energy distribution and formation rate of CHIME fast radio bursts
• Confining Burst Energy Function and Spectral Fringe Pattern of FRB 20121102A with Multifrequency Observations
• The primordial black holes solution to the cosmological monopole problem
• Earth-mass primordial black hole mergers as sources for non-repeating FRBs
• Relativistic Einstein Rings of Reissner-Nordström metric Black Holes Nonminimally Coupled to Electrodynamics
• Short-duration gamma-ray bursts from Kerr-Newman black hole mergers