4 papers · 1 filter
The case for late-time optical bumps in GRB afterglows as a supernova signature
J. S. Bloom
Observations of late-time optical bumps have been reported for several GRBs. The timescale for such bumps, and colors of such when available, find a natural explanation as due to a…
Cosmological Uses of Gamma-Ray Bursts
S. G. Djorgovski, S. R. Kulkarni, D. A. Frail +12
Studies of the cosmic gamma-ray bursts (GRBs) and their host galaxies are starting to provide interesting or even unique new insights in observational cosmology. GRBs represent a n…
The gamma-ray burst of 980425 and its association with the extraordinary radio emission from a most unusual supernova
S. R. Kulkarni, D. A. Frail, M. H. Wieringa +6
Supernova SN 1998bw exploded in the same direction and at the same time as the gamma-ray burst GRB 980425. Here we report radio observations of this type Ic supernova, beginning 4…
Testing for Extragalactic Correlations of Gamma-Ray Bursts
Joshua S. Bloom, Nial R. Tanvir, Ralph A. M. J. Wijers
If gamma-ray bursts (GRBs) are cosmological they need not necessarily be spatially coincident with a host galaxy--in many cosmological models the progenitors are ejected to large d…