Discrepant Measurements of the Radial Velocities of Ss-Cygni - Solution to the Problem

Details Discrepant Measurements of the Radial Velocities of Ss-Cygni - Solution to the Problem Discrepant Measurements of the Radial Velocities of Ss-Cygni - Solution to the Problem

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.130..113r&link_type=abstract

Astrophysics and Space Science, Volume 130, Issue 1-2, pp. 113-118

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

The author shows 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 correct K velocity of the center of mass of the K5 V star is 158±3 km s-1.

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