The discovery by the BeppoSAX satellite of X-ray afterglow emission from the gamma-ray burst (GRB) which occurred on 28 February 1997 produced a revolution in our knowledge of the gamma-ray burst phenomenon. Along with the discovery of X-ray afterglows, the optical afterglows of GRBs were discovered and the distance issue was settled, at least for long GRBs. The 30 year mystery of the gamma-ray burst phenomenon is now on the way to solution. Here I rewiew the observational status of the X-ray afterglow emission, its mean properties (detection rate, continuum spectra, line features, and light curves), and the X-ray constraints on theoretical models of GRBs and their progenitors. I also discuss the early onset afterglow emission, the remaining questions, and the role of future X-ray afterglow observations.

X--ray observations of Gamma Ray Burst Afterglows

FRONTERA, Filippo
2003

Abstract

The discovery by the BeppoSAX satellite of X-ray afterglow emission from the gamma-ray burst (GRB) which occurred on 28 February 1997 produced a revolution in our knowledge of the gamma-ray burst phenomenon. Along with the discovery of X-ray afterglows, the optical afterglows of GRBs were discovered and the distance issue was settled, at least for long GRBs. The 30 year mystery of the gamma-ray burst phenomenon is now on the way to solution. Here I rewiew the observational status of the X-ray afterglow emission, its mean properties (detection rate, continuum spectra, line features, and light curves), and the X-ray constraints on theoretical models of GRBs and their progenitors. I also discuss the early onset afterglow emission, the remaining questions, and the role of future X-ray afterglow observations.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1191123
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