Physical properties of active stars and stellar systems

Details Physical properties of active stars and stellar systems Physical properties of active stars and stellar systems

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.295..257o&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 295, Issue 2, pp. 257-264.

Astronomy and Astrophysics

Astronomy

20

Stars: Activity, Binaries: General, Stars: Fundamental Parameters, Stars: Late-Type, Stars: Rotation

Scientific paper

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 vsini 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).

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