A&A 417, 1075-1081 (2004)
A numerical model for the -ray emission of the microquasar LS 5039V. Bosch-Ramon and J. M. Paredes
Departament d'Astronomia i Meteorologia, Universitat de Barcelona, Av. Diagonal 647, 08028 Barcelona, Spain
(Received 3 November 2003 / Accepted 6 January 2004 )
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 -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.
Key words: X-rays: binaries -- stars: individual: LS 5039 -- gamma-rays: observations -- gamma-rays: theory
Offprint request: V. Bosch-Ramon, firstname.lastname@example.org
© ESO 2004