Fundamental States of Accretion/Jet Configuration and the Black Hole   Candidate GRS1915+105
  Advective disk paradigm of black hole accretion includes self-consistent formation of shocks and outflows from post-shock region. We apply this paradigm to understand rich variation of the light curve of the black hole candidate GRS1915+105. We propose that out of five possible {\it fundamental states} the black hole candidate GRS1915+105 moves around among three of them creating all possible observed light curves. 
Sandip K. Chakrabarti (SNBNCBS and CSP) and Anuj Nandi