Diverse Temporal Properties of GRB Afterglow

Abstract

The detection of delayed X-ray, optical and radio emission, "afterglow", associated with $\gamma$-ray bursts (GRBs) is consistent with fireball models, where the emission are produced by relativistic expanding blast wave, driven by expanding fireball at cosmogical distances. The emission mechanisms of GRB afterglow have been discussed by many authors and synchrotron radiation is believed to be the main mechanism. The observations show that the optical light curves of two observed gamma-ray bursts, GRB970228 and GRB GRB970508, can be described by a simple power law, which seems to support the synchrotron radiation explanation. However, here we shall show that under some circumstances, the inverse Compton scattering (ICS) may play an important role in emission spectrum and this may influence the temporal properties of GRB afterglow. We expect that the light curves of GRB afterglow may consist of multi-components, which depends on the fireball parameters.

Latex, no figures, minor correction

References in corpus (7)

• Optical and Long Wavelength Afterglow from Gamma-Ray Bursts
• Discovery of the X-Ray Afterglow of the Gamma-Ray Burst of February 28 1997
• Shocked by GRB 970228: the afterglow of a cosmological fireball
• GRB after-glow: Supporting the cosmological fireball model, constraining parameters, and making predictions
• Gamma-ray burst after-glow: Confirming the cosmological fireball model
• The soft X-ray afterglow of gamma ray bursts, a stringent test for the fireball model
• The evolution of GRB remnants

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