Fast Radio Bursts from the Decay of Cosmic String Cusps

Abstract

We explore the possibility that Fast Radio Bursts are due to the annihilation of cusps on cosmic string loops. We compute the energy released in the annihilation events in the radio region, the expected event rate, and the time scale of the bursts. We find that the energy and event rates are sufficiently high and the time scale is sufficiently small to explain the current data. We predict how the event rate will change as the resolution of telescopes improves. Since the burst rate depends on the string tension, future data will allow the determination of the tension.

arXiv comment7 pages, references added

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Cited by in corpus (7)

• A Living Theory Catalogue for Fast Radio Bursts
• Intermediate Mass Black Hole Seeds from Cosmic String Loops
• Detection of Low Tension Cosmic Superstrings
• Ionization from Cosmic Strings at Cosmic Dawn
• Are fast radio bursts generated by cosmic string cusps?
• Earth-mass primordial black hole mergers as sources for non-repeating FRBs
• Cosmic Rays and Spectral Distortions from Collapsing Textures