A Simple Analytic Treatment of the Intergalactic Absorption Effect in Blazar Gamma-Ray Spectra


We derive a new and user friendly simple analytic approximation for determining the effect of intergalactic absorption on the γ-ray spectra of TeV blazars the energy range 0.2 TeV < Eγ < 2 TeV and the redshift range 0.05 < z < 0.4. In these ranges, the form of the absorption coefficient τ(Eγ) is approximately logarithmic. The effect of this energy… (More)

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