Fermi Gamma-ray Space Telescope

Inhomogeneous SSC model for the gamma-ray production in jets of microquasars

Piotr Banasinski
P. Banasinski & W. Bednarek

Abstract:

Microquasars are the group of radio loud X-ray binaries with relativistic jets. Observations carried out during last few years have shown that microquasars are also sources of high energy gamma-rays. However, the origin of the radiation has not been fully explained yet. One of the possible explanation assumes that the gamma-rays is produced by relativistic electrons in the inverse Compton process with the radiation of a companion star, an accretion disc or synchrotron photons produced in the jet itself. We consider a model in which a substantial part of the jet is populated by relativistic electrons with the spectrum depending on jets basic parameters in different parts of the jet. We assume that high energy radiation is produced in the inhomogeneous synchrotron self-Compton process and in the external Compton process on the radiation of a companion star. We investigate emission proprieties of jet as a function of different parameters of microquasars. Obtained results are compared with the spectral energy distribution of selected microquasars.