Spectroscopic binaries among Hipparcos M giants , I. Data, orbits, and intrinsic variations

  title={Spectroscopic binaries among Hipparcos M giants , I. Data, orbits, and intrinsic variations},
  author={B. Famaey and D. Pourbaix and A. Frankowski and S. Eck and M. Mayor and S. Udry and A. Jorissen},
  journal={Astronomy and Astrophysics},
  • B. Famaey, D. Pourbaix, +4 authors A. Jorissen
  • Published 2009
  • Physics
  • Astronomy and Astrophysics
  • Context. This paper is a follow-up on the vast effort to collect radial velocity data for stars belonging to the Hipparcos survey. Aims. We aim at extending the orbital data available for binaries with M giant primaries. The data presented in this paper will be used in the companion papers of this series to (i) derive the binar y frequency among M giants and compare it to that of K giants (Paper II) and (ii) analyse the eccentricity ‐ period diagram and the mass-function distribution (Paper III… CONTINUE READING
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