@article{0e26285ec79b49cf884e0537cfcdd920,
title = "KEPLER-1647B: The LARGEST and LONGEST-PERIOD KEPLER TRANSITING CIRCUMBINARY PLANET",
abstract = "We report the discovery of a new Kepler transiting circumbinary planet (CBP). This latest addition to the still-small family of CBPs defies the current trend of known short-period planets orbiting near the stability limit of binary stars. Unlike the previous discoveries, the planet revolving around the eclipsing binary system Kepler-1647 has a very long orbital period (∼1100 days) and was at conjunction only twice during the Kepler mission lifetime. Due to the singular configuration of the system, Kepler-1647b is not only the longest-period transiting CBP at the time of writing, but also one of the longest-period transiting planets. With a radius of 1.06 ± 0.01 R Jup, it is also the largest CBP to date. The planet produced three transits in the light curve of Kepler-1647 (one of them during an eclipse, creating a syzygy) and measurably perturbed the times of the stellar eclipses, allowing us to measure its mass, 1.52 ± 0.65 M Jup. The planet revolves around an 11-day period eclipsing binary consisting of two solar-mass stars on a slightly inclined, mildly eccentric (e bin = 0.16), spin-synchronized orbit. Despite having an orbital period three times longer than Earth's, Kepler-1647b is in the conservative habitable zone of the binary star throughout its orbit.",
author = "Kostov, {Veselin B.} and Orosz, {Jerome A.} and Welsh, {William F.} and Doyle, {Laurance R.} and Fabrycky, {Daniel C.} and Nader Haghighipour and Billy Quarles and Short, {Donald R.} and Cochran, {William D.} and Michael Endl and Ford, {Eric B.} and Joao Gregorio and Hinse, {Tobias C.} and Howard Isaacson and Jenkins, {Jon M.} and Jensen, {Eric L.N.} and Stephen Kane and Ilya Kull and Latham, {David W.} and Lissauer, {Jack J.} and Marcy, {Geoffrey W.} and Tsevi Mazeh and M{\"u}ller, {Tobias W.A.} and Joshua Pepper and Quinn, {Samuel N.} and Darin Ragozzine and Avi Shporer and Steffen, {Jason H.} and Guillermo Torres and Gur Windmiller and Borucki, {William J.}",
note = "Funding Information: Acknowledge support from NASA via grants NNX13AI76G and NNX14AB91G. N. H. acknowledges support from the NASA ADAP program under grant NNX13AF20G and NASA PAST program grant NNX14AJ38G. T.C.H. acknowledges support from KASI research grant 2015-1-850-04. Part of the numerical computations have been carried out using the SFI/HEA Irish Center for High-End Computing (ICHEC) and the POLARIS computing cluster at the Korea Astronomy and Space Science Institute (KASI). This work was performed in part under contract with the Jet Propulsion Laboratory (JPL) funded by NASA through the Sagan Fellowship Program executed by the NASA Exoplanet Science Institute. Publisher Copyright: {\textcopyright} 2016. The American Astronomical Society. All rights reserved.",
year = "2016",
month = aug,
day = "10",
doi = "10.3847/0004-637X/827/1/86",
language = "English (US)",
volume = "827",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",
}