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Evolution of the Low-Energy Photon Spectra in Gamma-Ray Bursts
A. Crider, E. P. Liang, I. A. Smith +6
We report evidence that the asymptotic low-energy power law slope alpha (below the spectral break) of BATSE gamma-ray burst photon spectra evolves with time rather than remaining c…
Broad band high energy observations of the superluminal jet source GRO J1655-40 during an outburst
S. N. Zhang, K. Ebisawa, R. Sunyaev +7
The X-ray/radio transient superluminal jet source GRO J1655-40 was recently suggested to contain a black hole from optical observations. Being a relatively close-by system (d \sim…
A Comprehensive Search for Low-Energy Lines in BATSE GRBs
Michael S. Briggs, David L. Band, Robert D. Preece +4
A computer-based technique has been developed to search bright BATSE gamma-ray bursts for spectral lines in a comprehensive manner. The first results of the search are discussed an…
Testing the Dipole and Quadrupole Moments of Galactic Models
Michael S. Briggs, William S. Paciesas, Geoffrey N. Pendleton +6
If gamma-ray bursts originate in the Galaxy, at some level there should be a galactic pattern in their distribution on the sky. We test published galactic models by comparing their…
Evidence from quasi-periodic oscillations for a millisecond pulsar in the low mass x-ray binary 4U 0614+091
E. Ford, P. Kaaret, M. Tavani +6
We have detected quasi-periodic oscillations (QPOs) near 1 kHz from the low mass X-ray binary 4U 0614+091 in observations with XTE. The observations span several months and sample…
X-Ray Observations of GRS 1915+105
J. Greiner, B. A. Harmon, W. S. Paciesas +2
A comparison of ROSAT observations with simultaneous BATSE monitoring data shows a different intensity evolution in the soft and hard X-ray band of GRS 1915+105 since 1992. In addi…