0220035

One of the key problems in X-ray and Gamma-ray astronomy is to understand accretion flows in a strong gravitational field and how they are coupled with the outflows which can be a major channel for the outputof the accretion power. This applies to both Active Galactic Nuclei (AGN) where the accretion is onto supermassive black hole as well as stellar mass Galactic black holes and even neutron stars.We propose a program with INTEGRAL coupled with multiwavelength observations in order to performdeep hard X-ray observations of a recurrent black hole that is usually found in the Low Hard state: namelyGX 339-4 or XTE J1550-564. In studying several wavelength simultaneously along with the INTEGRAL bandwe hope to gain a unique insight into the coupled inflow-outflow around an accreting stellar mass black holeas never done before over such a large frequency range with very sensitive instruments. [truncated! Please see actual data for full text]