Lepto-hadronic models for high-energy from microquasars application to GX 339-4

G. S. VILA; ROMERO, GUSTAVO E

Congreso; Reunion Anual de la Asociacion Argentina de Astronomia; 2007

GX 339-4 is a low-mass X-ray binary, and a strong candidate to stellar black hole. It has been extensively observed from radio wavelengths to X-rays, both in the low-hard and in the high-soft spectral states of X-ray binaries. A pair of relativistic radio-emitting jets have also been resolved, what turns this system into a confirmed galactic microquasar. In this work we apply a jet model to explain the observed broadband spectrum of GX 339-4 in the low-hard state, and make predictions for the emission in the gamma-ray domain. In our model, the electromagnetic emission is produced through the interaction of relativistic protons and electrons in the jet with local matter, radiation and magnetic fields. We expect to compare our predictions with the observations to be carried in the near future by instruments like the Fermi satellite and ground-based Cherenkov telescope arrays, in the GeV and TeV energy ranges, respectively.