2 papers
astro-ph1999
The Distribution of X-ray Dips with Orbital Phase in Cygnus X-1
M. Balucinska-Church, M. J. Church, P. A. Charles +3
We present results of a comprehensive study of the distribution of absorption dips with orbital phase in Cygnus X-1. Firstly, the distribution was obtained using archival data from…
astro-ph1998
The Orbital Period of HDE226868/Cyg X-1
J. LaSala, P. A. Charles, R. A. D. Smith +2
We present epoch 1996, high-quality radial velocity data for HDE 226868, the optical counterpart of Cygnus X-1. Combining our results with all published historical data, we have de…