KELT-3b: A HOT JUPITER TRANSITING A V=9.8 LATE-F STAR Academic Article uri icon


  • We report the discovery of KELT-3b, a moderately inflated transiting hot Jupiter with a mass of 1.477?0.067+0.066 MJ, radius of 1.345 0.072RJ, and an orbital period of 2.7033904 0.000010 days. The host star, KELT-3, is a V = 9.8 late F star with M* = 1.278+0.063?0.061M, R* = 1.472+0.065?0.067 R *, Teff = 6306+50?49 K, log(g) = 4.209+0.033?0.031, and [Fe/H] = 0.044 +0.080?0.082, and has a likely proper motion companion. KELT-3b is the third transiting exoplanet discovered by the KELT survey, and is orbiting one of the 20 brightest known transiting planet host stars, making it a promising candidate for detailed characterization studies. Although we infer that KELT-3 is significantly evolved, a preliminary analysis of the stellar and orbital evolution of the system suggests that the planet has likely always received a level of incident flux above the empirically identified threshold for radius inflation suggested by Demory and Seager. 2013. The American Astronomical Society. All rights reserved. Printed in the U.S.A.

published proceedings


altmetric score

  • 11.15

author list (cited authors)

  • Pepper, J., Siverd, R. J., Beatty, T. G., Gaudi, B. S., Stassun, K. G., Eastman, J., ... Trueblood, P.

citation count

  • 41

complete list of authors

  • Pepper, Joshua||Siverd, Robert J||Beatty, Thomas G||Gaudi, B Scott||Stassun, Keivan G||Eastman, Jason||Collins, Karen||Latham, David W||Bieryla, Allyson||Buchhave, Lars A||Jensen, Eric LN||Manner, Mark||Penev, Kaloyan||Crepp, Justin R||Cargile, Phillip A||Dhital, Saurav||Calkins, Michael L||Esquerdo, Gilbert A||Berlind, Perry||Fulton, Benjamin J||Street, Rachel||Ma, Bo||Ge, Jian||Wang, Ji||Mao, Qingqing||Richert, Alexander JW||Gould, Andrew||Depoy, Darren L||Kielkopf, John F||Marshall, Jennifer L||Pogge, Richard W||Stefanik, Robert P||Trueblood, Mark||Trueblood, Patricia

publication date

  • August 2013