New spectroscopic binary companions of giant stars and updated metallicity distribution for binary systems

@article{PBluhm2016NewSB,
  title={New spectroscopic binary companions of giant stars and updated metallicity distribution for binary systems},
  author={P.Bluhm and M.I.Jones and L.Vanzi and M.G.Soto and J.Vos and R. Wittenmyer and H.Drass and J.S.Jenkins and F.Olivares and R.E.Mennickent and M.Vuckovic and P.Rojo and C.H.F.Melo},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2016}
}
We report the discovery of 24 spectroscopic binary companions to giant stars. We fully constrain the orbital solution for 6 of these systems. We cannot unambiguously derive the orbital elements for the remaining stars because the phase coverage is incomplete. Of these stars, 6 present radial velocity trends that are compatible with long-period brown dwarf companions.The orbital solutions of the 24 binary systems indicate that these giant binary systems have a wide range in orbital periods… Expand
An eccentric companion at the edge of the brown dwarf desert orbiting the 2.4 M⊙ giant star HIP 67537

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