γ-ray emission from microquasars: A numerical model for LSI +61°303
Open Access
- 28 September 2004
- journal article
- research article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 425 (3) , 1069-1074
- https://doi.org/10.1051/0004-6361:20041185
Abstract
We explore the possible association between the microquasar LSI +61°303 and the EGRET source 2CG 135+01/3EG J0241+6103 by studying, with a detailed numerical model, whether this system can produce the emission and the variability 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. Our results reproduce the observed spectral characteristics and variability at γ-rays, thus strengthening the identification of LSI +61°303 as a high-energy γ-ray source.Keywords
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