4 papers
Discovery of the optical counterpart and early optical observations of GRB990712
Kailash C. Sahu
We present the discovery observations of the optical counterpart of the gamma-ray burster GRB990712 taken 4.16 hours after the outburst and discuss its light curve observed in the…
The Hubble Deep Field South - STIS Imaging
J. P. Gardner, S. A. Baum, T. M. Brown +18
We present the imaging observations made with the Space Telescope Imaging Spectrograph of the Hubble Deep Field - South. The field was imaged in 4 bandpasses: a clear CCD bandpass…
Lensing and the luminosity of Gamma-ray bursts and their hosts
C. A. Scharf, K. C. Sahu
The quoted intrinsic luminosity of objects has a dependency on the assumed cosmology, and the (less often considered) assumed gravitational lensing due to the matter content of the…
Observations of GRB 970228 and GRB 970508, and the Neutron-Star Merger Model
Kailash C. Sahu, Mario Livio, Larry Petro +6
We present the discovery observations for the optical counterpart of the -ray burster GRB 970508 and discuss its light curve in the context of the fireball model. We analyze the…