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No Evidence for Gamma-Ray Burst/Abell Cluster or Gamma- Ray Burst/Radio-Quiet Quasar Correlations
K. Hurley, D. H. Hartmann, C. Kouveliotou +4
We examine the recent claims that cosmic gamma-ray bursts are associated with either radio-quiet quasars or Abell clusters. These associations were based on positional coincidences…
The Diffuse Gamma-Ray Background from Supernovae
K. Watanabe, D. H. Hartmann, M. D. Leising +1
The Cosmic Gamma-ray Background (CGB) in the MeV region is believed to be due to photons from radioactivity produced in SNe throughout the history of galaxies in the universe. In p…
On the Association of Gamma-Ray Bursts with Supernovae
R. M. Kippen, M. S. Briggs, J. M. Kommers +7
The recent discovery of a supernova (SN 1998bw) seemingly associated with GRB~980425 adds a new twist to the decades-old debate over the origin of gamma-ray bursts. To investigate…
A Statistical Treatment of the Gamma-Ray Burst "No Host Galaxy" Problem: II. Energies of Standard Candle Bursts
D. L. Band, D. H. Hartmann, B. E. Schaefer
With the discovery that the afterglows after some bursts are coincident with faint galaxies, the search for host galaxies is no longer a test of whether bursts are cosmological, bu…