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={Alexandre Santerne and Guillaume H{\'e}brard and Magali Deleuil and Mathieu Havel and A. C. M. Correia and Jose M. Almenara and Roi Alonso and Luc Arnold and Susana C. C. Barros and Raoul Behrend and Laurent Bernasconi and Isabelle Boisse and Aldo S. Bonomo and François Bouchy and Giovanni Bruno and Chiara Damiani and Rodrigo F. D{\'i}az and D. Gravallon and Tristan Guillot and O. Labrevoir and Guillaume Montagnier and Claire Moutou and C. Rinner and Nuno C. Santos and Lyu Abe and Maurice Audejean and Philippe P. Bendjoya and C. Gillier and Joao Gregorio and P. Martinez and J. Michelet and R. Montaigut and R. Poncy and Jean-Pierre Rivet and Guillaume 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}
}
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… 
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