KELT-12b: A P 5 day, Highly Inflated Hot Jupiter Transiting a Mildly Evolved Hot Star Academic Article uri icon

abstract

  • Abstract We announce the discovery of KELT-12b, a highly inflated Jupiter-mass planet transiting the mildly evolved, V=10.64 host star TYC 2619-1057-1. We followed up the initial transit signal in the KELT-North survey data with precise ground-based photometry, high-resolution spectroscopy, precise radial velocity measurements, and high-resolution adaptive optics imaging. Our preferred best-fit model indicates that the host star has =627951 K, =3.890.05, [Fe/H]= , = , and =2.370.17 . The planetary companion has m{P}}}$?> =0.950.14 m{J}}}$?> , m{P}}}$?> = m{J}}}$?> , m{P}}}$?> = , and density ho }_{{
    m{P}}}$?>     = g cm3, making it one of the most inflated giant planets known. Furthermore, for future follow-up, we report a high-precision time of inferior conjunction in

published proceedings

  • ASTRONOMICAL JOURNAL

altmetric score

  • 30.83

author list (cited authors)

  • Stevens, D. J., Collins, K. A., Gaudi, B. S., Beatty, T. G., Siverd, R. J., Bieryla, A., ... Trueblood, P.

citation count

  • 17

publication date

  • April 2017