503 citations · 2.7k across the 37 of their papers we have counts for
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Afterglow spectrum of a gamma-ray burst with the highest known redshift z=6.295
N. Kawai, G. Kosugi, K. Aoki +25
Gamma-ray bursts (GRBs) and their afterglows have been proposed as an excellent probe to study the evolution of cosmic star formation, the reionization of the intergalactic medium,…
Implications for the Cosmic Reionization from the Optical Afterglow Spectrum of the Gamma-Ray Burst 050904 at z = 6.3
Tomonori Totani, Nobuyuki Kawai, George Kosugi +5
The gamma-ray burst (GRB) 050904 at z = 6.3 provides the first opportunity of probing the intergalactic medium (IGM) by GRBs at the epoch of the reionization. Here we present a spe…
Multi-wavelength analysis of the field of the dark burst GRB 031220
A. Melandri, B. Gendre, L. A. Antonelli +8
We have collected and analyzed data taken in different spectral bands (from X-ray to optical and infrared) of the field of GRB031220 and we present results of such multiband observ…
The afterglow of GRB050709 and the nature of the short-hard gamma-ray bursts
D. B. Fox, D. A. Frail, P. A. Price +33
The final chapter in the long-standing mystery of the gamma-ray bursts (GRBs) centres on the origin of the short-hard class, suspected on theoretical grounds to result from the coa…
A log N(HI) = 22.6 DLA in a dark gamma-ray burst: the environment of GRB 050401
D. Watson, J. P. U. Fynbo, C. Ledoux +33
The optical afterglow spectrum of GRB050401 (at z=2.8992+/-0.0004) shows the presence of a DLA, with log(nHI)=22.6+/-0.3. This is the highest column density ever observed in a DLA,…
A Variable Infrared Counterpart to the Soft Gamma-ray Repeater SGR 1806-20
George Kosugi, Ryusuke Ogasawara, Hiroshi Terada
We present K'-band (2.12 micron) imaging observations of the SGR 1806-20 field taken during its very active phase in mid 2004, which reveal brightening of sources within the Chandr…