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Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs
P. A. Evans, A. P. Beardmore, K. L. Page +22
We present a homogeneous X-ray analysis of all 318 Gamma Ray Bursts detected by the X-ray Telescope on the Swift satellite up to 2008 July 23; this represents the largest sample of…
Multiple flaring activity in the supergiant fast X-ray transient IGR J08408-4503 observed with Swift
P. Romano, L. Sidoli, G. Cusumano +11
IGR J08408-4503 is a supergiant fast X-ray transient discovered in 2006 with a confirmed association with a O8.5Ib(f) supergiant star, HD 74194. We report on the analysis of two ou…
Jet breaks at the end of the slow decline phase of Swift GRB lightcurves
M. De Pasquale, P. Evans, S. Oates +9
The Swift mission has discovered an intriguing feature of Gamma-Ray Burst (GRBs) afterglows, a phase of shallow decline of the flux in the X-ray and optical lightcurves. This behav…
The Dust Scattering Model Can Not Explain The Shallow X-ray Decay in GRB Afterglows
Rong-Feng Shen, Richard Willingale, Pawan Kumar +2
A dust scattering model was recently proposed to explain the shallow X-ray decay (plateau) observed prevalently in Gamma-Ray Burst (GRB) early afterglows. In this model the plateau…
Improving Swift-XRT positions of GRBs
P. A. Evans, A. P. Beardmore, M. R. Goad +3
Since GRBs fade rapidly, it is important to publish accurate, precise positions at early times. For Swift-detected bursts, the best promptly available position is most commonly the…