KEPLER-14b: A MASSIVE HOT JUPITER TRANSITING AN F STAR IN A CLOSE VISUAL BINARY
KEPLER-14b: A MASSIVE HOT JUPITER TRANSITING AN F STAR IN A CLOSE VISUAL BINARY
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DOI：
10.1088/0067-0049/197/1/3
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发表时间：
2011-06
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通讯作者：
L. Buchhave;D. Latham;J. Carter;J. D'esert;G. Torres;E. Adams;S. Bryson;D. Charbonneau;D. Ciardi;C. Kulesa;A. Dupree;D. Fischer;F. Fressin;T. N. Gautier III;R. Gilliland;S. Howell;H. Isaacson;J. Jenkins;G. Marcy;D. Mccarthy;J. Rowe;N. Batalha;W. Borucki;T. Brown;D. Caldwell;J. Christiansen;W. Cochran;D. Deming;E. Dunham;M. Everett;E. Ford;J. Fortney;J. Geary;F. Girouard;M. Haas;M. Holman;E. Horch;T. Klaus;H. Knutson;D. Koch;J. Kolodziejczak;J. Lissauer;P. Machálek;F. Mullally;M. Still;S. Quinn;S. Seager;S. Thompson;J. V. van Cleve
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作者：
L. Buchhave;D. Latham;J. Carter;J. D'esert;G. Torres;E. Adams;S. Bryson;D. Charbonneau;D. Ciardi;C. Kulesa;A. Dupree;D. Fischer;F. Fressin;T. N. Gautier III;R. Gilliland;S. Howell;H. Isaacson;J. Jenkins;G. Marcy;D. Mccarthy;J. Rowe;N. Batalha;W. Borucki;T. Brown;D. Caldwell;J. Christiansen;W. Cochran;D. Deming;E. Dunham;M. Everett;E. Ford;J. Fortney;J. Geary;F. Girouard;M. Haas;M. Holman;E. Horch;T. Klaus;H. Knutson;D. Koch;J. Kolodziejczak;J. Lissauer;P. Machálek;F. Mullally;M. Still;S. Quinn;S. Seager;S. Thompson;J. V. van Cleve
我们在近距离观察(0.“3天投影角距)双星系统中发现了一颗热木星穿过一颗F星。主恒星的光线被几乎相等的恒星伴星(∼0.5mag较暗)稀释，显著影响了导出的行星参数，如果不进行校正，将导致对行星半径和质量的低估分别为10%和60%。其他尚未用高分辨率成像观测到的已发表的系外行星，可能同样有未分辨的恒星伴星，因此得出的行星参数不正确。开普勒-14b(KOI-98)的周期为P=6.790天，经稀释校正后，质量MP=8.4+0.35−0.34MJ，半径Rp=1.136+0.073−0.054 RJ，平均密度ρp=7.1g cm−3。
We present the discovery of a hot Jupiter transiting an F star in a close visual (0.″3 sky projected angular separation) binary system. The dilution of the host star's light by the nearly equal magnitude stellar companion (∼0.5 mag fainter) significantly affects the derived planetary parameters, and if left uncorrected, leads to an underestimate of the radius and mass of the planet by 10% and 60%, respectively. Other published exoplanets, which have not been observed with high-resolution imaging, could similarly have unresolved stellar companions and thus have incorrectly derived planetary parameters. Kepler-14b (KOI-98) has a period of P = 6.790 days and, correcting for the dilution, has a mass of Mp = 8.40+0.35 − 0.34 MJ and a radius of Rp = 1.136+0.073 − 0.054 RJ, yielding a mean density of ρp = 7.1 ± 1.1 g cm−3.