The active eclipsing binary RS Canum Venaticorum

Details The active eclipsing binary RS Canum Venaticorum The active eclipsing binary RS Canum Venaticorum

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...231..375r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 231, no. 2, May 1990, p. 375-382. Research supported by CICYT.

Astronomy and Astrophysics

Astrophysics

9

Eclipsing Binary Stars, Stellar Evolution, White Dwarf Stars, Calcium, Infrared Photometry, Stellar Activity, Stellar Spectra, Stellar Spectrophotometry, Stellar Temperature

Scientific paper

New observational data of the active eclipsing binary RSCVn is presented. This includes optical (uvby beta) and near infrared broadband photometry as well as high-resolution Ca II spectroscopy. A detailed discussion is made about relevant physical parameters based on absolute dimensions and accurate photometry during totality. Several suggested activity indicators (CaII emission, color indices, and continuum flux distribution) are analyzed; the results show a very active cool component with a normal hot companion. Finally, a comparison is made with evolutionary models indicating a reasonable agreement for the derived absolute dimensions.

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