Baryon Loading of Gamma-Ray Burst by Neutron Pickup | Zendy

Amir Levinson | Zendy; David Eichler | Zendy

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Baryon Loading of Gamma-Ray Burst by Neutron Pickup

Author(s) -

Amir Levinson,

David Eichler

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/378487

Subject(s) - physics , gamma ray burst , baryon , nuclear physics , neutron , supernova , neutrino , beryllium , astrophysics , polarization (electrochemistry) , muon , chemistry

It is proposed that the baryons in gamma ray burst (GRB) fireballs originateas "pick-up" neutrons that leak in sideways from surrounding baryonic matterand convert to protons in a collision avalanche. The asymptotic Lorentz factoris estimated, and, in the absence of collimation, is shown to be angledependent. Reasonable agreement is obtained with existing limits on the GRBbaryonic component. The charged decay and collision products of the neutronsbecome ultrarelativistic immediately, and a UHE neutrino burst is produced withan efficiency that can exceed 0.5. Other signatures may include lithium,beryllium and/or boron lines in the supernova remnants associated with GRB'sand high polarization of the gamma rays.Comment: 12 pages, substantial changes from previous versio

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