Arid
DOI10.1051/0004-6361/201117807
SOPHIE velocimetry of Kepler transit candidates IV. KOI-196b: a non-inflated hot Jupiter with a high albedo
Santerne, A.1,2; Bonomo, A. S.1,2; Hebrard, G.3,4,5; Deleuil, M.1,2; Moutou, C.1,2; Almenara, J-M1,2; Bouchy, F.3,4,5; Diaz, R. F.3,4,5
通讯作者Santerne, A.
来源期刊ASTRONOMY & ASTROPHYSICS
ISSN0004-6361
出版年2011
卷号536
英文摘要

We report the discovery of a new hot-Jupiter, KOI-196b, transiting a solar-type star with an orbital period of 1.855558 days +/- 0.6 s 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 +/- 0.05 R-Jup and a mass of 0.55 +/- 0.09 M-Jup, orbits a G6V star with R-star = 1.02 +/- 0.03 R-circle dot, M-star = 1.12 +/- 0.07 M-circle dot, [Fe/H] = 0.29 +/- 0.16 dex, T-eff = 5620 +/- 140 K, and an age of 650(-300)(+2500) Myr. 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(-12)(+10) ppm as well as the optical phase variation. We find a geometric albedo of A(g) = 0.30 +/- 0.08, which is higher than most of the transiting hot Jupiters with a measured A(g). Assuming no heat recirculation, we find a day-side temperature of T-day = 1730 +/- 400 K. The planet KOI-196b seems to be one of the rare hot Jupiters located in the short-period hot-Jupiter desert.


英文关键词techniques: spectroscopic techniques: photometric techniques: radial velocities stars: individual: KOI-196 planetary systems
类型Article
语种英语
国家France
收录类别SCI-E
WOS记录号WOS:000298485100105
WOS关键词RADIAL-VELOCITY MEASUREMENTS ; EXTRASOLAR GIANT PLANETS ; ABUNDANCE ANALYSIS ; LIGHT CURVES ; LOW-DENSITY ; STAR ; MASS ; EXOPLANETS ; SYSTEM ; COMPANIONS
WOS类目Astronomy & Astrophysics
WOS研究方向Astronomy & Astrophysics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167197
作者单位1.Univ Aix Marseille, Lab Astrophys Marseille, F-13388 Marseille 13, France;
2.CNRS, F-13388 Marseille 13, France;
3.Univ Paris 06, Inst Astrophys Paris, CNRS UMR7095, F-75014 Paris, France;
4.Univ Aix Marseille, Observ Haute Provence, F-04870 St Michel lObservatoire, France;
5.CNRS, F-04870 St Michel lObservatoire, France
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Santerne, A.,Bonomo, A. S.,Hebrard, G.,et al. SOPHIE velocimetry of Kepler transit candidates IV. KOI-196b: a non-inflated hot Jupiter with a high albedo[J],2011,536.
APA Santerne, A..,Bonomo, A. S..,Hebrard, G..,Deleuil, M..,Moutou, C..,...&Diaz, R. F..(2011).SOPHIE velocimetry of Kepler transit candidates IV. KOI-196b: a non-inflated hot Jupiter with a high albedo.ASTRONOMY & ASTROPHYSICS,536.
MLA Santerne, A.,et al."SOPHIE velocimetry of Kepler transit candidates IV. KOI-196b: a non-inflated hot Jupiter with a high albedo".ASTRONOMY & ASTROPHYSICS 536(2011).
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