Broadband X-ray Spectroscopy of GRS 1915+105
  We analyzed RXTE data of GRS 1915+105 of X-ray low states between 1996 and 1998. The X-ray spectrum is dominated by the power law component. We found (i) that the power law is pivoting at 10-30 keV, (ii) that the power law slope correlates with radio flux, (iii) three different groups of 3-10 keV residuals, (iv) that one of these residual groups correlates with the power law slope. 
A. Rau, J. Greiner, (Astrophys. Inst. Potsdam, Germany)