Kepler-14b: A Massive Hot Jupiter Transiting an F Star in a Close Visual Binary
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Seager_Kepler-14b.pdf
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968.74 KB
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Checksum (MD5)
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Author(s)
Seager, Sara
Date Issued
September 2011
Journal
Astrophysical Journal
Publisher
IOP Publishing
Citation
Buchhave, Lars A. et al. “Kepler-14b: A Massive Hot Jupiter Transiting an F Star in a Close Visual Binary.” The Astrophysical Journal Supplement Series 197.1 (2011): 3. © 2011 IOP Publishing
Version
Final published version
Abstract
We present the discovery of a hot Jupiter transiting an F star in a close visual (0[" over .]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 M[subscript p] = 8.40[superscript +0.35] [subscript – 0.34] M [subscript J] and a radius of R[subscript p] = 1.136[superscript +0.073] [subscript – 0.054] R [subscript J], yielding a mean density of ρ [subscript p] = 7.1 ± 1.1 g cm[superscript –3].
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
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DOI of Published Version
https://doi.org/10.1088/0067-0049/197/1/3
