727 citations · 2.6k across the 30 of their papers we have counts for
4 papers · 1 filter
TeV and Superheavy Mass-Scale Particles from Supersymmetric Topological Defects, the Extragalactic Gamma-ray Background, and the Highest Energy Cosmic Rays
P. Bhattacharjee, Qaisar Shafi, F. W. Stecker
Cosmic topological defects in a wide class of supersymmetric theories can simultaneously be sources of higgs particles of mass comparable to the supersymmetry breaking scale …
EGRET Observations of the Extragalactic Gamma Ray Emission
P. Sreekumar
The all-sky survey in high-energy gamma rays (E30 MeV) carried out by the Energetic Gamma Ray Experiment Telescope (EGRET) aboard the Compton Gamma-Ray Observatory provides a un…
Absorption of High Energy Gamma Rays by Interactions with Extragalactic Starlight Photons at High Redshifts
M. H. Salamon, F. W. Stecker
We extend earlier calculations of the attenuation suffered by gamma rays during their propagation from extragalactic sources, obtaining new extinction curves for gamma rays down to…
Absorption of High Energy Gamma Rays by Interactions With Starlight Photons in Extragalactic Space at High Redshifts and the High Energy Gamma-Ray Background
M. H. Salamon, F. W. Stecker
We calculate the absorption of 10-500 GeV gamma-rays at high redshifts. This calculation requires the determination of the high-redshift evolution of the intergalactic starlight ph…