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Discrepant Measurements of the Radial Velocities of SS Cygni: Solution to the Problem
1987
International Astronomical Union Colloquium
AbstractWe show that the discrepancies among the various measurements of the radial velocity curve of the K5 V star in the dwarf nova SS Cyg have been caused by (1) poor choices of lines for measuring its velocity and (2) large distortions in its velocity caused by heating from the white dwarf and its accretion disk. The correctKvelocity of the center of mass of the K5 V star is 158 ± 3km s−1.
doi:10.1017/s0252921100104713
fatcat:ijqjtbqgrbgarmlb7qr2pbfvnm