2 papers
astro-ph2004
BL Lac contribution to the Extragalactic Gamma-Ray Background
Tanja Kneiske, Karl Mannheim
Very high energy gamma-rays(E>20GeV) from blazars traversing cosmological distances through the metagalactic radiation field can convert to electron-positron pairs in photon-photon…
astro-ph1999
Cosmic Star Formation Rate From Gamma-Ray Attenuation
T. M. Kneiske, K. Mannheim
We compute the attenuation of gamma-rays from remote quasars due to interactions with ambient low-energy photons produced by stars in galaxies and show that the next-generation gam…