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Optical Spectropolarimetry of the GRB 020813 Afterglow
A. J. Barth, R. Sari, M. H. Cohen +6
The optical afterglow of gamma-ray burst 020813 was observed for 3 hours with the LRIS spectropolarimeter at the Keck-I telescope, beginning 4.7 hours after the burst was detected…
Discovery of GRB 020405 and its Late Red Bump
P. A. Price, S. R. Kulkarni, E. Berger +41
We present the discovery of GRB 020405 made with the Inter-Planetary Network (IPN). With a duration of 60 s, the burst appears to be a typical long duration event. We observed the…
GRB 010921: Strong Limits on an Underlying Supernova from HST
P. A. Price, S. R. Kulkarni, B. P. Schmidt +24
GRB 010921 was the first HETE-2 GRB to be localized via its afterglow emission. The low-redshift of the host galaxy, z=0.451, prompted us to undertake intensive multi-color observa…
Time-Dependent Optical Spectroscopy of GRB 010222: Clues to the GRB Environment
N. Mirabal, J. P. Halpern, S. R. Kulkarni +9
We present sequential optical spectra of the afterglow of GRB 010222 obtained one day apart using the Low Resolution Imaging Spectrometer (LRIS) and the Echellette Spectrograph and…
The Broadband Afterglow of GRB980329
S. A. Yost, D. A. Frail, F. A. Harrison +15
We present radio observations of the afterglow of the bright gamma-ray burst GRB980329 made between one month and several years after the burst, a re-analysis of previously publish…
GRB 011121: A Massive Star Progenitor
P. A. Price, E. Berger, D. E. Reichart +29
Of the cosmological gamma-ray bursts, GRB 011121 has the lowest redshift, z=0.36. More importantly, the multi-color excess in the afterglow detected in the Hubble Space Telescope (…