A model for fast extragalactic radio bursts

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280 Scopus citations


Bursts of millisecond duration were recently discovered in the 1 GHz band. There is a strong evidence that they come from ~1 Gpc distances, which implies extraordinary high-brightness temperature. I propose that these bursts could be attributed to synchrotron maser emission from relativistic, magnetized shocks. At the onset of the magnetar flare, a strongly magnetized pulse is formed, which propagates away through the relativistic magnetar wind and eventually reaches the nebula inflated by the wind within the surrounding medium. I show that the observed radio bursts could be generated at shocks formed via the interaction of the magnetic pulse with the plasma within the nebula. The model predicts strong millisecond bursts in the TeV band, which could be observed even from distant galaxies.

Original languageEnglish
Article numberslu046
Pages (from-to)L9-L13
JournalMonthly Notices of the Royal Astronomical Society: Letters
Issue number1
StatePublished - 1 Jan 2014


  • Magnetic fields
  • Masers
  • Radiation mechanisms: non-thermal
  • Shock waves
  • Stars: neutron

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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