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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…
Constraining the energy budget of GRB 080721
R. L. C. Starling, E. Rol, A. J. van der Horst +17
We follow the bright, highly energetic afterglow of Swift-discovered GRB 080721 at z=2.591 out to 36 days or 3e6 s since the trigger in the optical and X-ray bands. We do not detec…
Modelling the spectral response of the Swift-XRT CCD camera: Experience learnt from in-flight calibration
O. Godet, A. P. Beardmore, A. F. Abbey +11
(Abbreviated) We show that the XRT spectral response calibration was complicated by various energy offsets in photon counting (PC) and windowed timing (WT) modes related to the way…
High-resolution X-ray spectroscopy of the evolving shock in the 2006 outburst of RS Ophiuchi
J. -U. Ness, J. J. Drake, S. Starrfield +9
The evolution of the 2006 outburst of the recurrent nova RS Ophiuchi was followed with 12 X-ray grating observations with Chandra and XMM-Newton. We present detailed spectral analy…
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…
Detection of the high z GRB 080913 and its implications on progenitors and energy extraction mechanisms
D. Perez-Ramirez, A. de Ugarte Postigo, J. Gorosabel +15
Aims: We present multiwavelength observations of one of the most distant gamma-ray bursts detected so far, GRB 080913. Based on these observations, we consider whether it could be…