Latest Ddevelopments in Black Hole Astrophysics

Sandip K. Chakrabarti

S.N. Bose Centre for Basic Sciences

and

Centre for Space Physics, Kolkata, India

I discuss all possible ways matter can accrete on a black hole. I also discuss the spectral signatures of the steady and non-steady flows and their observational evidences. Lately, some satellite observations confirm our views that accreting matter has two distinct components, one Keplerian and the other sub-Keplerian. I discuss these developments as well.