Ongoing Project

We examine the X-ray/Radio correlation detected in the low-hard state of several Galactic black hole candidate sources and explain these correlations using a Two Component Advective Flow model. We invoke radial shocks in the accretion disk and derive a relation between the shock location and the outflow rate, convert these derived parameters into observed radio emission. Parameterizing the accretion as two components, one from a classical Shakura-Sunyaev disk and another a `halo' accretion, we derive a pedagogical X-ray spectral description. we examine the predicted behavior of the radio emission with respect to the X-ray emission, as a function of accretion and outflow parameters. We find that the predicted behavior follows very closely with the observed one, not only with the X-ray/Radio correlation, but also the radio emission behavior during the spectra state transitions. We also find that the X-ray and radio behavior of Cygnus X-3 can be explained only if we assume that the jet emission is highly relativistic and beamed towards the observer, indicating that this source could be very strong candidate to be identified as a Galactic Microblazar.