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arXiv · 1105.0154

Effects of a low electron distribution cutoff on multiwavelength spectra and light curves of GRB afterglows

Maria Petropoulou·Apostolos Mastichiadis·Tsvi Piran
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Abstract

Aims: We investigate the behavior of the frequency-centered light curves expected within the standard model of Gamma Ray Bursts allowing the maximum electron energy to be a free parameter permitted to take low values. Methods: We solve the spatially averaged kinetic equations which describe the simultaneous evolution of particles and photons, obtaining the multi-wavelength spectra as a function of time. From these we construct the frequency-centered light curves giving emphasis in the X-ray and optical bands. Results: We show that in cases where the maximum electron energy takes low values, the produced X-ray light curves show a plateau as the synchrotron component gives its place to the Synhro Self-Compton one in the X-ray band.

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Maria Petropoulou, Apostolos Mastichiadis, Tsvi Piran. 2011-05-01. Effects of a low electron distribution cutoff on multiwavelength spectra and light curves of GRB afterglows. https://doi.org/10.1051/0004-6361/201016088

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