Extinction of the TeV Gamma-Ray Background by Sunlight

2022/07/01 by Abraham Loeb, Loeb, Abraham
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Astrophysics and Cosmic Phenomena #Atomic and Subatomic Physics Research

paper · pdf · doi:10.48550/arxiv.2207.00671

Abstract

I show that pair production on sunlight introduces a sizable anisotropy in the cosmic background of TeV gamma-rays. The anisotropy amplitude in the direction of the Sun exceeds the cosmic dipole anisotropy from the motion of the Sun relative to the cosmic rest-frame.

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