Swift X-ray Afterglows and the Missing Jet Break Problem

Details Swift X-ray Afterglows and the Missing Jet Break Problem Swift X-ray Afterglows and the Missing Jet Break Problem

2008-01-30

arxiv.org/abs/0801.4749v1

AIP Conf.Proc.1000:196-199,2008

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures, contributed talk, submitted to the proceedings of Gamma Ray Bursts 2007, Santa Fe, New Mexico, November 5-

Scientific paper

10.1063/1.2943442

We present a systematic survey of the temporal and spectral properties of all GRB X-ray afterglows observed by Swift-XRT between January 2005 and July 2007. We have constructed a catalog of all light curves and spectra and investigate the physical origin of each afterglow segment in the framework of the forward shock models by comparing the data with the closure relations. We search for possible jet-like breaks in the lightcurves and try to explain some of the "missing" X-ray jet breaks in the lightcurves.

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