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Different progenitors of short hard gamma-ray bursts
Eleonora Troja, Andrew R. King, Paul T. O'Brien +2
We consider the spatial offsets of short hard gamma-ray bursts (SHBs) from their host galaxies. We show that all SHBs with extended duration soft emission components lie very close…
Swift observations of GRB 060614: an anomalous burst with a well behaved afterglow
V. Mangano, S. T. Holland, D. Malesani +22
GRB 060614 is a remarkable GRB observed by Swift with puzzling properties, which challenge current progenitor models. The lack of any bright SN down to very strict limits and the v…
GRB 061121: Broadband spectral evolution through the prompt and afterglow phases of a bright burst
K. L. Page, R. Willingale, J. P. Osborne +33
Swift triggered on a precursor to the main burst of GRB 061121 (z=1.314), allowing observations to be made from the optical to gamma-ray bands. Many other telescopes, including Kon…
The exceptionally extended flaring activity in the X-ray afterglow of GRB 050730 observed with Swift and XMM-Newton
M. Perri, D. Guetta, L. A. Antonelli +27
We present the results of a detailed spectral and temporal analysis of Swift and XMM-Newton observations of the high redshift (z=3.969) GRB 050730. The X-ray afterglow of GRB 05073…
The First Survey of X-ray Flares from Gamma Ray Bursts Observed by Swift: Temporal Properties and Morphology
G. Chincarini, A. Moretti, P. Romano +24
We present the first systematic investigation of the morphological and timing properties of flares in GRBs observed by Swift/XRT. We consider a large sample drawn from all GRBs det…
Rest frame light curves of Swift GRBs
V. Mangano, V. La Parola, E. Troja +12
We have computed the luminosity rest frame light curves of the first 40 Gamma-ray bursts (GRBs) detected by Swift with well established redshift. We studied average properties of t…