SOPHIE velocimetry of Kepler transit candidates - XII. KOI-1257 b: a highly eccentric three-month period transiting exoplanet

@article{Santerne2014SOPHIEVO,
  title={SOPHIE velocimetry of Kepler transit candidates - XII. KOI-1257 b: a highly eccentric three-month period transiting exoplanet},
  author={A. Santerne and G. H'ebrard and M. Deleuil and M. Havel and A. Correia and Jos{\'e} Almenara and R. Alonso and L. Arnold and S. Barros and R. Behrend and L. Bernasconi and I. Boisse and A. Bonomo and F. Bouchy and G. Bruno and C. Damiani and R. D'iaz and D. Gravallon and T. Guillot and O. Labrevoir and G. Montagnier and C. Moutou and C. Rinner and N. Santos and L. Abe and M. Audejean and P. Bendjoya and C. Gillier and J. Greg{\'o}rio and P. Martinez and J. Michelet and R. Montaigut and R. Poncy and J. Rivet and G. Rousseau and R. Roy and O. Su{\'a}rez and M. Vanhuysse and D. V{\'e}rilhac},
  journal={Astronomy and Astrophysics},
  year={2014},
  volume={571}
}
  • A. Santerne, G. H'ebrard, +36 authors D. Vérilhac
  • Published 2014
  • Physics
  • Astronomy and Astrophysics
  • In this paper we report a new transiting warm giant planet: KOI-1257 b. It was first detected in photometry as a planet-candidate by the Kepler space telescope and then validated thanks to a radial velocity :follow-up with the SOPHIE spectrograph. It orbits its host star with a period of 86,647661 d +/- 3 s and a high eccentricity of 0.772 +/- 0.045. The planet transits the main star of a metal-rich, relatively old binary system With stars of mass of 0.99 +/- 0.05 M-circle dot and 0.70 +/- 0.07… CONTINUE READING
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