Models for gamma-ray production in low-mass microquasars

Abstract

Unlike high-mass gamma-ray binaries, low-mass microquasars lack external sources of radiation and matter that could produce high-energy emission through interactions with relativistic particles. In this work we consider the synchrotron emission of protons and leptons that populate the jet of a low-mass microquasar. In our model photohadronic and inverse Compton (IC) interactions with synchrotron photons produced by both protons and leptons result in a high-energy tail of the spectrum. We also estimate the contribution from secondary pairs injected through photopair production. The high-energy emission is dominated by radiation of hadronic origin, so we can call these objects proton microquasars.

4 pages, 2 figures, accepted for publication in the International Journal of Modern Physics D, proceedings of HEPRO meeting, held in Dublin, in September 2007

References in corpus (4)

• Variable Very High Energy Gamma-ray Emission from the Microquasar LS I +61 303
• Very High Energy Gamma-ray Radiation from the Stellar-mass Black Hole Cygnus X-1
• Jet-dominated advective systems: radio and X-ray luminosity dependence on the accretion rate
• The Inclination Angle of and Mass of the Black Hole in XTE J1118+480

Cited by in corpus (2)

• MAGIC observations of the microquasar V404 Cygni during the 2015 outburst
• On the nature of the AGILE galactic transient sources