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Decay properties of the X-ray afterglows of Gamma-ray bursts

B. Gendre·M. Boer
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Abstract

We present a set of seventeen Gamma-Ray Bursts (GRBs) with known redshifts and X-ray afterglow emission. We apply cosmological corrections in order to compare their fluxes normalized at a redshift of 1. Two classes of GRB can be defined using their X-ray afterglow light curves. We show that the brightest afterglows seem to decay faster than the dimer ones. We also point out evidences for a possible flux limit of the X-ray afterglow depending on the time elapsed since the burst. We try to interpret these observations in the framework of the canonical fireball model of GRB afterglow emission.

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B. Gendre, M. Boer. 2004-11-09. Decay properties of the X-ray afterglows of Gamma-ray bursts. https://doi.org/10.1051/0004-6361%3A20042031

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