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X-ray Flashes or soft Gamma-ray Bursts? The case of the likely distant XRF 040912
G. Stratta, S. Basa, N. Butler +49
In this work, we present a multi-wavelength study of XRF 040912, aimed at measuring its distance scale and the intrinsic burst properties. We performed a detailed spectral and temp…
UVES/VLT high resolution spectroscopy of GRB 050730 afterglow: probing the features of the GRB environment
V. D'Elia, F. Fiore, E. Meurs +44
We analyze high resolution spectroscopic observations of the optical afterglow of GRB050730, obtained with UVES@VLT about hours after the GRB trigger. The spectrum shows that the I…
Continuous optical monitoring during the prompt emission of GRB 060111B
Alain Klotz, Bruce Gendre, Giulia Stratta +5
We present the time-resolved optical emission of GRB 060111B during its prompt phase, measured with the TAROT robotic observatory. This is the first time that the optical emission…
The Gamma-ray burst 050904 : evidence for a termination shock ?
B. Gendre, A. Galli, A. Corsi +5
We analyze optical and X-ray observations of GRB 050904 obtained with TAROT and SWIFT. We perform temporal and spectral analysis of the X-ray and optical data. We find significant…