SIMBAD references

2011A&A...536A..70S - Astronomy and Astrophysics, volume 536A, 70-70 (2011/12-1)

SOPHIE velocimetry of Kepler transit candidates. IV. KOI-196b: a non-inflated hot Jupiter with a high albedo.

SANTERNE A., BONOMO A.S., HEBRARD G., DELEUIL M., MOUTOU C., ALMENARA J.-M., BOUCHY F. and DIAZ R.F.

Abstract (from CDS):

We report the discovery of a new hot-Jupiter, KOI-196b, transiting a solar-type star with an orbital period of 1.855558-days±0.6s thanks to public photometric data from the Kepler space mission and new radial velocity observations obtained by the SOPHIE spectrograph mounted on the 1.93-m telescope at the Observatoire de Haute-Provence, France. The planet KOI-196b, with a radius of 0.89±0.05RJup and a mass of 0.55±0.09MJup, orbits a G6V star with R*=1.02±0.03R, M*=1.12±0.07M, [Fe/H]=0.29±0.16dex, Teff=5620±140K, and an age of 650+2500–300Myr. KOI-196b is one of the rare close-in hot Jupiters with a radius smaller than Jupiter suggesting that it is a non-inflated planet. The high precision of the Kepler photometry permits us to detect the secondary transit with a depth of 64 +10–12ppm as well as the optical phase variation. We find a geometric albedo of Ag=0.30±0.08, which is higher than most of the transiting hot Jupiters with a measured Ag. Assuming no heat recirculation, we find a day-side temperature of Tday=1730±400K. The planet KOI-196b seems to be one of the rare hot Jupiters located in the short-period hot-Jupiter desert.

Abstract Copyright:

Journal keyword(s): techniques: spectroscopic - techniques: photometric - techniques: radial velocities - stars: individual: KOI-196 - systems planetary

Simbad objects: 12

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