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Light from the Cosmic Frontier: Gamma-Ray Bursts
L. Amati, J. -L. Atteia, L. Balazs +41
Gamma-Ray Bursts (GRBs) are the most powerful cosmic explosions since the Big Bang, and thus act as signposts throughout the distant Universe. Over the last 2 decades, these ultra-…
GRB 090426: Discovery of a jet break in a short burst afterglow
A. Nicuesa Guelbenzu, S. Klose, A. Rossi +14
Context: The link between the duration of GRBs and the nature of their progenitors remains disputed. Short bursts (with durations of less than ~2 s) are less frequently observed, t…
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…
High energy emission and polarisation limits for the INTEGRAL burst GRB 061122
S. McGlynn, S. Foley, B. McBreen +6
(Abridged) GRB 061122 is one of the brightest GRBs detected within INTEGRAL's field of view to date. The two gamma-ray detectors on INTEGRAL were used to investigate the spectral c…