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

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

2004-01-14

arxiv.org/abs/astro-ph/0401260v3

Astron.Astrophys. 417 (2004) 1075-1081

Astronomy and Astrophysics

Astrophysics

14 pages, 4 figures, 3 tables, LaTeX, uses aa.cls. published in A&A, final published version (referee format)mnkdir

Scientific paper

10.1051/0004-6361:20035615

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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