Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-11-14
Astrophys.J.493:L27-L30,1998
Astronomy and Astrophysics
Astrophysics
15 pages including 3 figures, LaTeX, accepted by ApJL, Nov. 13, 1997
Scientific paper
10.1086/311125
We report on the results of R band observations of the error box of the gamma-ray burst of August 28, 1997, made between 4 hours and 8 days after this burst occurred. No counterpart was found varying by more than 0.2 magnitudes down to R = 23.8. We discuss the consequences of this non-detection for relativistic blast wave models of gamma-ray bursts, and the possible effect of redshift on the relation between optical absorption and the low-energy cut off in the X-ray afterglow spectrum.
Galama Titus
Groot Paul J.
Kouveliotou Chryssa
Paradijs Jan van
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