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Time-Resolved Spectroscopy of the 3 Brightest and Hardest Short Gamma-Ray Bursts Observed with the FGST Gamma-Ray Burst Monitor
Sylvain Guiriec, Michael S. Briggs, Valerie Connaugthon +25
From July 2008 to October 2009, the Gamma-ray Burst Monitor (GBM) on board the Fermi Gamma-ray Space Telescope (FGST) has detected 320 Gamma-Ray Bursts (GRBs). About 20% of these e…
New Parameters and Transit Timing Studies for OGLE2-TR-L9 b
M. Lendl, C. Afonso, J. Koppenhoefer +4
Context: Repeated observations of exoplanet transits allow us to refine the planetary parameters and probe them for any time dependent variations. In particular deviations of the p…
DUAL Gamma-Ray Mission
S. Boggs, C. Wunderer, P. von Ballmoos +30
Gamma-ray astronomy presents an extraordinary scientific potential for the study of the most powerful sources and the most violent events in the Universe. In order to take full adv…
GRB 021004: Tomography of a gamma-ray burst progenitor and its host galaxy
A. J. Castro-Tirado, P. Möller, G. García-Segura +23
We analyse the distribution of matter around the progenitor star of gamma-ray burst GRB 021004 as well as the properties of its host galaxy with high-resolution echelle as well as…
A very metal poor Damped Lyman-alpha system revealed through the most energetic GRB 090926A
Arne Rau, S. Savaglio, T. Krühler +9
We present VLT/FORS2 spectroscopy and GROND optical/near-IR photometry of the afterglow of the bright Fermi/LAT GRB 090926A. The spectrum shows prominent Lyman-alpha absorption wit…