Transfer of material from the star to the black hole generates a relativistic jet, making this a microquasar system.

[5] "GRS" stands for "GRANAT source", "1915" is the right ascension (19 hours and 15 minutes) and "105" reflects the approximate declination (10 degrees and 56 arcminutes).

The black hole rotates at least 950 times per second, giving it a spin parameter >0.82 (1.0 is the theoretical maximum).

[7] Repeat observations by the Chandra X-Ray Observatory over the period of a decade have revealed what may be a mechanism for self-regulation of the rate of growth of GRS 1915+105.

The jet of materials being ejected is occasionally choked off by a hot wind blowing off the accretion disk.