Collisional mechanism for gamma‐ray burst emission

  title={Collisional mechanism for gamma‐ray burst emission},
  author={Andrei M. Beloborodov},
  journal={Monthly Notices of the Royal Astronomical Society},
  • A. Beloborodov
  • Published 5 July 2009
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Nuclear and Coulomb collisions in gamma-ray burst (GRB) jets create a hot e ± plasma. This collisional heating starts when the jet is still opaque, and extends to the transparent region. The e ± plasma radiates its energy. As a result, a large fraction of the jet energy is converted to escaping radiation with a well-defined spectrum. The process is simulated in detail using the known rates of collisions and accurate calculations of radiative transfer in the expanding jet. The result reproduces… 

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