A leptonic/hadronic jet model for the low-mass microquasar XTE J1118+480

VILA GABRIELA S.; ROMERO GUSTAVO E.

Buenos Aires

Simposio; IAU Symposium 275: Jets at all Scales; 2010

International Astronomical Union

We present a one–zone jet model that fits the data from simultaneous broadbandradio-to-X-rays observations of XTE J1118+480. We calculate the radiative contribution to thenon-thermal spectrum of both relativistic electrons and protons, as well as that from secondarymuons, charged pions and electron-positron pairs produced at high-energy hadronic interactions.The distributions in energy of all the particle species are obtained taking into account the energylosses, injection, decay and escape from the emission region.We also include absorption effects onthe emission spectrum due to photon-photon annihilation. Finally, we discuss the detectabilityof XTE J1118+480 at high energies with the present instruments according to the predictionsof our model for the gamma-ray band.