Comptonization, the X-ray-radio correlation and the long-term periodicity in the chi-states of GRS 1915+105

Arne Rau, Jochen Greiner

We analyzed 139 chi-state observations of GRS 1915+105 with RXTE from 1997 to 2000 and found i) that the observations fall into two groups with different Comptonization behavior, i…