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Swift Discovery of Gamma-Ray Bursts without Jet Break Feature in their X-Ray Afterglows
G. Sato, R. Yamazaki, K. Ioka +16
We analyze Swift gamma-ray bursts (GRBs) and X-ray afterglows for three GRBs with spectroscopic redshift determinations -- GRB 050401, XRF 050416a, and GRB 050525a. We find that th…
Swift observations of GRB050712
M. De Pasquale, D. Grupe, T. S. Poole +12
We present the results of X-ray and optical observations of GRB050712 performed by Swift. The X-ray lightcurve of this burst exhibits episodes of flares in the first 1000s, the sam…
GRB 050713A: High Energy Observations of the GRB Prompt and Afterglow Emission
D. C. Morris, J. Reeves, V. Pal'shin +13
Swift discovered GRB 050713A and slewed promptly to begin observing with its narrow field instruments 72.6 seconds after the burst onset, while the prompt gamma-ray emission was st…
The Anomalous Early Afterglow of GRB 050801
E. S. Rykoff, V. Mangano, S. A. Yost +24
The ROTSE-IIIc telescope at the H.E.S.S. site, Namibia, obtained the earliest detection of optical emission from a Gamma-Ray Burst (GRB), beginning only 21.8 s from the onset of Sw…
The early X-ray emission from GRBs
P. T. O'Brien, R. Willingale, J. Osborne +29
We present observations of the early X-ray emission for a sample of 40 gamma-ray bursts (GRBs) obtained using the Swift satellite for which the narrow-field instruments were pointe…