Gamma-ray absorption in massive X-ray binaries
Gamma-ray absorption in massive X-ray binaries
Context.Gamma-ray emission in the TeV (1012 eV) range has been detected by HESS from two X-ray binaries: PSR B1259-63 and LS 5039. In both, the early-type star provides large numbers of target photons for pair-production with TeV γ-rays. This results in a modulation of the γ-ray flux as the relative …