Radio bursts from superconducting strings

Details Radio bursts from superconducting strings Radio bursts from superconducting strings

2011-10-07

arxiv.org/abs/1110.1631v2

Phys. Rev. D 85, 023530 (2012)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

8 pages, 6 figures, v2: corrected duration formula, other minor changes, matches the PRD version

Scientific paper

10.1103/PhysRevD.85.023530

We show that radio bursts from cusps on superconducting strings are linearly polarized, thus, providing a signature that can be used to distinguish them from astrophysical sources. We write the event rate of string-generated radio transients in terms of observational variables, namely, the event duration and flux. Assuming a canonical set of observational parameters, we find that the burst event rate can be quite reasonable, e.g., order ten a year for Grand Unified strings with 100 TeV currents, and a lack of observed radio bursts can potentially place strong constraints on particle physics models.

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