A Parallax Distance to the Microquasar GRS 1915+105 and a Revised Estimate of its Black Hole Mass

M. J. Reid, J. E. McClintock, J. F. Steiner +4

Using the Very Long Baseline Array, we have measured a trigonometric parallax for the micro quasar GRS 1915+105, which contains a black hole and a K-giant companion. This yields a…