Kepler-14b: A Massive Hot Jupiter Transiting an F Star in a Close Visual Binary

November 2011 • 2011ApJS..197....3B

Authors • Buchhave, Lars A. • Latham, David W. • Carter, Joshua A. • Désert, Jean-Michel • Torres, Guillermo • Adams, Elisabeth R. • Bryson, Stephen T. • Charbonneau, David B. • Ciardi, David R. • Kulesa, Craig • Dupree, Andrea K. • Fischer, Debra A. • Fressin, François • Gautier, Thomas N., III • Gilliland, Ronald L. • Howell, Steve B. • Isaacson, Howard • Jenkins, Jon M. • Marcy, Geoffrey W. • McCarthy, Donald W. • Rowe, Jason F. • Batalha, Natalie M. • Borucki, William J. • Brown, Timothy M. • Caldwell, Douglas A. • Christiansen, Jessie L. • Cochran, William D. • Deming, Drake • Dunham, Edward W. • Everett, Mark • Ford, Eric B. • Fortney, Jonathan J. • Geary, John C. • Girouard, Forrest R. • Haas, Michael R. • Holman, Matthew J. • Horch, Elliott • Klaus, Todd C. • Knutson, Heather A. • Koch, David G. • Kolodziejczak, Jeffrey • Lissauer, Jack J. • Machalek, Pavel • Mullally, Fergal • Still, Martin D. • Quinn, Samuel N. • Seager, Sara • Thompson, Susan E. • Van Cleve, Jeffrey

Abstract • We present the discovery of a hot Jupiter transiting an F star in a close visual (0farcs3 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 M_p = 8.40^+0.35 _{- 0.34} M _J and a radius of R_p = 1.136^+0.073 _{- 0.054} R _J, yielding a mean density of ρ _p = 7.1 ± 1.1 g cm^-3.

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2011ApJS..197....3B
• PDF https://iopscience.iop.org/article/10.1088/0067-0049/197/1/3/pdf
• PREPRINT http://arxiv.org/abs/1106.5510
• DATA http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?type=REFERENCE&bibcode=2011ApJS..197....3B
• DATA https://irsa.ipac.caltech.edu/bibdata/2011/B/2011ApJS..197....3B.html
• ELECTR https://iopscience.iop.org/article/10.1088/0067-0049/197/1/3