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The afterglow and the host galaxy of GRB 011211
P. Jakobsson, J. Hjorth, J. P. U. Fynbo +19
We present optical, near-infrared, and X-ray observations of the optical afterglow (OA) of the X-ray rich, long-duration gamma-ray burst GRB 011211. Hubble Space Telescope (HST) da…
On the Ly-alpha emission from gamma-ray burst host galaxies: evidence for low metallicities
J. P. U. Fynbo, P. Jakobsson, P. Moller +11
We report on the results of a search for Ly-alpha emission from the host galaxy of the z=2.140 GRB 011211 and other galaxies in its surrounding field. We detect Ly-alpha emission f…
A very energetic supernova associated with the gamma-ray burst of 29 March 2003
Jens Hjorth, Jesper Sollerman, Palle Møller +24
Over the past five years evidence has mounted that long-duration (> 2 s) gamma-ray bursts (GRBs)--the most brilliant of all astronomical explosions--signal the collapse of massive…
Delayed soft X-ray emission lines in the afterglow of GRB 030227
D. Watson, J. N. Reeves, J. Hjorth +2
Strong, delayed X-ray line emission is detected in the afterglow of GRB 030227, appearing near the end of the XMM-Newton observation, nearly twenty hours after the burst. The obser…