KELT-3b: A Hot Jupiter Transiting a V=9.8 Late-F Star

Дата и время публикации : 2012-11-05T21:01:21Z

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

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 12 pages, 12 figures, accepted to ApJ
Первичная категория: astro-ph.EP

Все категории : astro-ph.EP

Краткий обзор статьи: We report the discovery of KELT-3b, a moderately inflated transiting hot Jupiter with a mass of 1.477 (-0.067, +0.066) M_J, and radius of 1.345 +/- 0.072 R_J, with 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 (-0.061, +0.063) M_sun, R_* = 1.472 (-0.067, +0.065) R_sun, T_eff = 6306 (-49, +50) K, log(g) = 4.209 (-0.031, +0.033), and [Fe/H] = 0.044 (-0.082, +0.080), 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 & Seager (2011).

Category: Physics