Radiation from Comoving Poynting Flux Acceleration
arXiv:0905.0160 · doi:10.1088/0004-637X/705/2/1473
Abstract
We derive analytic formulas for the radiation power output when electrons are accelerated by a relativistic comoving kinetic Poynting flux, and validate these analytic results with Particle-In-Cell simulations. We also derive analytically the critical frequency of the radiation spectrum. Potential astrophysical applications of these results are discussed. A quantitative model of gamma-ray bursts based on the breakout of kinetic Poynting flux is presented.
30 pages 8 figures, resubmitted to ApJ, replaces earlier preprint titled "Radiation from Kinetic Poynting Flux Acceleration" (arXiV:0704.1843); most of the paper has been rewritten
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