Measurement and study of the rotations of RS Canum Venaticorum binaries

Details Measurement and study of the rotations of RS Canum Venaticorum binaries Measurement and study of the rotations of RS Canum Venaticorum binaries

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986acasn..27..130t&link_type=abstract

(Acta Astronomica Sinica, vol. 27, 1986, p. 130-136) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 10, Dec. 1986, p.

Astronomy and Astrophysics

Astrophysics

1

Binary Stars, Stellar Rotation, Stellar Spectrophotometry, Line Spectra, Synchronism

Scientific paper

The rotations of all the primaries and 5 of the secondaries in 33 RS CVn binary systems were measured using three lines in the red region, FeI 6663, FeI 6678, and CaI 6718. A comparison with synchronous rotation shows that none of the systems observed (some with P greater than 14 d) contradicts the assumption of synchronous rotation, contrary to a previous view.

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