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Astron. Astrophys. Suppl. Ser. 137, 369-383

Orbital elements and physical parameters of ten chromospherically active binary stars[*]

F.C. Fekel1[*] - K.G. Strassmeier2[*][*][*] - M. Weber2[*][*] - A. Washuettl2[*][*]

1 - Center for Automated Space Science and Center of Excellence in Information Systems, Tennessee State University,
Nashville, TN 37203, U.S.A.
2 - Institut für Astronomie, Universität Wien, Türkenschanzstraße 17, A-1180 Wien, Austria

Received March 17; accepted April 15, 1999


Orbital elements have been determined for 10 chromospherically active binaries from a combination of new velocities and velocities in the literature. First orbits for three binaries, HD 33363, HD 152178, and HD 208472, are presented, as well as updated orbits for seven other binaries. Two of the latter systems, LN Peg and HD 106225 were discovered to be triple, and both short- and long-period orbits have been computed for each. Fundamental properties have been determined for the chromopherically active primary in each system.

Key words: stars: binaries: spectroscopic; binaries: general -- stars: late-type -- stars: fundamental parameters -- stars: activity

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