Orbits of six late-type active-chromosphere binaries


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Griffin R. F. , Ak N.

ASTROPHYSICS AND SPACE SCIENCE, cilt.330, ss.47-60, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 330 Konu: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s10509-010-0381-3
  • Dergi Adı: ASTROPHYSICS AND SPACE SCIENCE
  • Sayfa Sayıları: ss.47-60

Özet

We present spectroscopic orbits for the active stars HD 82159 (GS Leo), HD 89959, BD +39A degrees 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.

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 Gálvez 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.