Cosmic sparks from superconducting strings

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72 Scopus citations


We investigate cosmic sparks from cusps on superconducting cosmic strings in light of the recently discovered millisecond radio burst by Lorimer et al.. We find that the observed duration, fluence, spectrum, and event rate can be reasonably explained by grand unification scale superconducting cosmic strings that carry currents ∼105GeV. The superconducting string model predicts an event rate that falls off only as S-1/2, where S is the energy flux, and hence predicts a population of very bright bursts. Other surveys, with different observational parameters, are shown to impose tight constraints on the superconducting string model.

Original languageEnglish (US)
Article number141301
JournalPhysical Review Letters
Issue number14
StatePublished - Sep 29 2008
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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