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Title: RELATIVISTIC POSITRON-ELECTRON-ION SHEAR FLOWS AND APPLICATION TO GAMMA-RAY BURSTS

We present particle-in-cell simulation results of relativistic shear flows for hybrid positron-electron-ion plasmas and compare to those for pure e {sup +} e {sup –} and pure e {sup –} ion plasmas. Among the three types of relativistic shear flows, we find that only hybrid shear flow is able to energize the electrons to form a high-energy spectral peak plus a hard power law tail. Such electron spectra are needed to model the observational properties of gamma-ray bursts.
Authors:
; ; ;  [1] ;  [2]
  1. Rice University, Houston, TX 77005 (United States)
  2. Centre for Space Research, North-West University, Potchefstroom 2520 (South Africa)
Publication Date:
OSTI Identifier:
22364078
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 779; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTRONOMY; ASTROPHYSICS; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; COSMIC ELECTRONS; COSMIC GAMMA BURSTS; COSMIC POSITRONS; ELECTRON SPECTRA; IONS; MAGNETIC FIELDS; PLASMA; RELATIVISTIC RANGE; SHEAR