Title: Transiting circumbinary planets Kepler-34 b and Kepler-35 b
Authors: Welsh, William F ×
Orosz, Jerome A
Carter, Joshua A
Fabrycky, Daniel C
Ford, Eric B
Lissauer, Jack J
Prsa, Andrej
Quinn, Samuel N
Ragozzine, Darin
Short, Donald R
Torres, Guillermo
Winn, Joshua N
Doyle, Laurance R
Barclay, Thomas
Batalha, Natalie
Bloemen, Steven
Brugamyer, Erik
Buchhave, Lars A
Caldwell, Caroline
Caldwell, Douglas A
Christiansen, Jessie L
Ciardi, David R
Cochran, William D
Endl, Michael
Fortney, Jonathan J
Gautier, Thomas N
Gilliland, Ronald L
Haas, Michael R
Hall, Jennifer R
Holman, Matthew J
Howard, Andrew W
Howell, Steve B
Isaacson, Howard
Jenkins, Jon M
Klaus, Todd C
Latham, David W
Marcy, Geoffrey W
Mazeh, Tsevi
Quintana, Elisa V
Robertson, Paul
Shporer, Avi
Steffen, Jason H
Windmiller, Gur
Koch, David G
Borucki, William J #
Issue Date: Jan-2012
Publisher: Nature Publishing Group
Series Title: Nature vol:481 issue:7382 pages:475-U85
Abstract: Most Sun-like stars in the Galaxy reside in gravitationally bound pairs of stars(1,2) (binaries). Although long anticipated(3-8), the existence of a 'circumbinary planet' orbiting such a pair of normal stars was not definitively established until the discovery(9) of the planet transiting (that is, passing in front of) Kepler-16. Questions remained, however, about the prevalence of circumbinary planets and their range of orbital and physical properties. Here we report two additional transiting circumbinary planets: Kepler-34 (AB)b and Kepler-35 (AB)b, referred to here as Kepler-34 b and Kepler-35 b, respectively. Each is a low-density gas-giant planet on an orbit closely aligned with that of its parent stars. Kepler-34 b orbits two Sun-like stars every 289 days, whereas Kepler-35 b orbits a pair of smaller stars (89% and 81% of the Sun's mass) every 131 days. The planets experience large multi-periodic variations in incident stellar radiation arising from the orbital motion of the stars. The observed rate of circumbinary planets in our sample implies that more than similar to 1% of close binary stars have giant planets in nearly coplanar orbits, yielding a Galactic population of at least several million.
ISSN: 0028-0836
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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