Photon-Photon Absorption of Very High Energy Gamma Rays from Microquasars: Application to LS 5039
نویسندگان
چکیده
منابع مشابه
Photon-photon Absorption of Very High Energy Gamma Rays from Microquasars: Application to Ls 5039
Very high energy (VHE) γ-rays have recently been detected from the Galactic black-hole candidate and microquasar LS 5039. A plausible site for the production of these VHE γ-rays is the mildly relativistic outflow close to the base of the jet. However, at distances comparable to the binary separation, the intense photon field of the stellar companion will lead to substantial γγ absorption of VHE...
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Recent High Energy Stereoscopic System (HESS) observations show that microquasars in highmass systems are sources of very high energy γ-rays. A leptonic jet model for microquasar γ-ray emission is developed. Using the head-on approximation for the Compton cross section and taking into account angular effects from the star’s orbital motion, we derive expressions to calculate the spectrum of γ ra...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2005
ISSN: 0004-637X,1538-4357
DOI: 10.1086/498615