Journal Article

Physical properties of active stars and stellar systems

R. A. Osten and S. H. Saar

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 295, issue 2, pages 257-264
Published in print April 1998 | ISSN: 0035-8711
Published online April 1998 | e-ISSN: 1365-2966 | DOI:
Physical properties of active stars and stellar systems

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We study spectra of 18 active stars and stellar systems, drawn from lists of known active binaries or newly discovered extreme-ultraviolet and soft X-ray sources. Using spectral synthesis and template modelling, we measure (often for the first time) a variety of physical properties of the stars, including spectral types, luminosities and υ sin i values. We report direct observation of previously undetected secondary components in three systems, and refine the orbital elements for two of these (HR 7275 and HD 217344).

Keywords: stars: activity; binaries: general; stars: fundamental parameters; stars: late-type; stars: rotation

Journal Article.  0 words. 

Subjects: Astronomy and Astrophysics

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