A catalog of chromospherically active binary stars

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Astronomical Catalogs, Binary Stars, Chromosphere, Extremely High Frequencies, Late Stars, Stellar Spectra, Emission Spectra, M Stars, Physical Properties

Scientific paper

The authors have compiled a catalog of 168 chromospherically active binary stars including the class of RS Canum Venaticorum binaries, BY Draconis binaries and other binaries which show "strong" Ca II H and K emission in their spectra. The catalog contains information on the photometric, spectroscopic, orbital and physical properties of the systems as well as the space motions and positions. Summarized in a candidate list are an additional 37 stars having similar characteristics but which are not definitely known binaries or have not had H and K emission observed. A bibliography and notes for each star are included to direct interested workers to primary references for each of the systems. The catalog contains stars in both the northern and the southern sky.

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