Orbits of Six Late-type Active-Chromosphere Binaries

Abstract

We present spectroscopic orbits for the active stars HD 82159 (GS Leo), HD 89959, BD +39 2587 (a visual companion to HD 112733), HD 138157 (OX Ser), HD 143705, and HD 160934. This paper is a sequel to one published in this journal in 2006, with similar avowed intention, by Galvez et al.. They showed only graphs, and gave no data, and no orbital elements apart from the periods (only two of which were correct) and in some cases the eccentricities. Here we provide full information and reliable orbital elements for all the stars apart from HD 160934, which has not completed a cycle since it was first observed for radial velocity.

17 pages, 8 figures. Accepted for publication in Astrophysics & Space Science

References in corpus (4)

• The Gemini Deep Planet Survey -- GDPS
• The nearest young moving groups
• A catalog of chromospherically active binary stars (third edition)
• Direct imaging of the young spectroscopic binary HD 160934

Cited by in corpus (6)

• Mapping the Shores of the Brown Dwarf Desert III: Young Moving Groups
• SPOTS: The Search for Planets Orbiting Two Stars: II. First constraints on the frequency of sub-stellar companions on wide circumbinary orbits
• The GAPS Programme with HARPS-N at TNG. XXXVII. A precise density measurement of the young ultra-short period planet TOI-1807 b
• Rotation, activity, and lithium abundance in cool binary stars
• Young, active radio stars in the AB Doradus moving group
• Syntriod: A Robust Initial Parameter Estimator for Radial Velocity Curve Solutions Beyond Conventional Sampling Limits