A Fast Radio Burst Occurs Every Second throughout the Observable Universe

Abstract

Recent multi-telescope observations of the repeating Fast Radio Burst FRB 121102 reveal a Gaussian-like spectral profile and associate the event with a dwarf metal-poor galaxy at a cosmological redshift of 0.19. Assuming that this event represents the entire FRB population, we make predictions for the expected number counts of FRBs observable by future radio telescopes between 50 MHz and 3.5 GHz. We vary our model assumptions to bracket the expected rate of FRBs, and find that it exceeds one FRB per second per sky when accounting for faint sources. We show that future low-frequency radio telescopes, such as the Square Kilometer Array, could detect more than one FRB per minute over the entire sky originating from the epoch of reionization.

Accepted for publication in ApJ Letters, 6 pages, 2 figures

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• Cosmological-model-independent determination of Hubble constant from fast radio bursts and Hubble parameter measurements
• Cosmology with fast radio bursts in the era of SKA
• Primordial Black Holes as Dark Matter: Constraints From Compact Ultra-Faint Dwarfs
• Revealing the cosmic reionisation history with fast radio bursts in the era of Square Kilometre Array
• Energy function, formation rate and low-metallicity environment of fast radio bursts
• Fast Radio Burst Tomography of the Unseen Universe
• Reconstruction of Baryon Fraction in Intergalactic Medium through Dispersion Measurements of Fast Radio Bursts
• Improvement of cosmological constraints with the cross correlation between line-of-sight optical galaxy and FRB dispersion measure
• Diverse origins for non-repeating fast radio bursts: Rotational radio transient sources and cosmological compact binary merger remnants
• The variance of dispersion measure of high-redshift transient objects as a probe of ionized bubble size during reionization
• Constraints on the Helium Abundance from Fast Radio Bursts
• Cavendish experiment with fast radio bursts on cosmological scales
• Constraining Primordial Black Hole Dark Matter with CHIME Fast Radio Bursts