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A numerical model for the gamma-ray emission of the microquasar LS 5039

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The possible association between the microquasar LS 5039 and the EGRET source 3EG J1824-1514 suggests that microquasars could also be sources of high energy gamma-rays. In this paper, we explore, with a detailed numerical model, if this system can produce the emission detected by EGRET (>100 MeV) through inverse Compton (IC) scattering. Our numerical approach considers a population of relativistic electrons entrained in a cylindrical inhomogeneous jet, interacting with both the radiation and the magnetic fields, taking into account the Thomson and Klein-Nishina regimes of interaction. The computed spectrum reproduces the observed spectral characteristics at very high energy.

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BOSCH I RAMON, Valentí and PAREDES I POY, Josep Maria. A numerical model for the gamma-ray emission of the microquasar LS 5039. Astronomy and Astrophysics. 2004. Vol. 417, num. 3, pags. 1075-1081. ISSN 0004-6361. [consulted: 28 of May of 2026]. Available at: https://hdl.handle.net/2445/45339

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