SOPHIE velocimetry of Kepler transit candidates II. KOI-428b: a hot Jupiter transiting a subgiant F-star

@article{Santerne2011SOPHIEVO,
  title={SOPHIE velocimetry of Kepler transit candidates II. KOI-428b: a hot Jupiter transiting a subgiant F-star},
  author={A. Santerne and R. Diaz and F. Bouchy and M. Deleuil and C. Moutou and G. H'ebrard and A. Eggenberger and D. Ehrenreich and C. Gry and S. Udry},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={528}
}
  • A. Santerne, R. Diaz, +7 authors S. Udry
  • Published 2011
  • Physics
  • Astronomy and Astrophysics
  • We report the discovery of a hot Jupiter transiting a subgiant star with an orbital period of 6.87 days thanks to public photometric data from the Kepler space mission and new radial velocity observations obtained by the SOPHIE spectrograph. The planet KOI-428b with a radius of 1.17 +/- 0.04 RJup and a mass of 2.2 +/- 0.4MJup, orbits around a F5IV star with R* = 2.13 +/- 0.06Rsun, M* = 1.48 +/- 0.06 Msun and Teff = 6510 +/- 100 K. The star KOI-428 is the largest and the most evolved star… CONTINUE READING
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