KEPLER-1647B: The LARGEST and LONGEST-PERIOD KEPLER TRANSITING CIRCUMBINARY PLANET

Veselin B. Kostov, Jerome A. Orosz, William F. Welsh, Laurance R. Doyle, Daniel C. Fabrycky, Nader Haghighipour, Billy Quarles, Donald R. Short, William D. Cochran, Michael Endl, Eric B. Ford, Joao Gregorio, Tobias C. Hinse, Howard Isaacson, Jon M. Jenkins, Eric L.N. Jensen, Stephen Kane, Ilya Kull, David W. Latham, Jack J. LissauerGeoffrey W. Marcy, Tsevi Mazeh, Tobias W.A. Müller, Joshua Pepper, Samuel N. Quinn, Darin Ragozzine, Avi Shporer, Jason H. Steffen, Guillermo Torres, Gur Windmiller, William J. Borucki

Research output: Contribution to journalArticle

34 Citations (Scopus)

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.

Original languageEnglish (US)
Article number86
JournalAstrophysical Journal
Volume827
Issue number1
DOIs
StatePublished - Aug 10 2016

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planets
planet
binary stars
eclipses
Kepler mission
orbits
orbitals
conjunction
eccentrics
transit
light curve
trends
stars
life (durability)
radii
configurations

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Kostov, V. B., Orosz, J. A., Welsh, W. F., Doyle, L. R., Fabrycky, D. C., Haghighipour, N., ... Borucki, W. J. (2016). KEPLER-1647B: The LARGEST and LONGEST-PERIOD KEPLER TRANSITING CIRCUMBINARY PLANET. Astrophysical Journal, 827(1), [86]. https://doi.org/10.3847/0004-637X/827/1/86
Kostov, Veselin B. ; Orosz, Jerome A. ; Welsh, William F. ; Doyle, Laurance R. ; Fabrycky, Daniel C. ; Haghighipour, Nader ; Quarles, Billy ; Short, Donald R. ; Cochran, William D. ; Endl, Michael ; Ford, Eric B. ; Gregorio, Joao ; Hinse, Tobias C. ; Isaacson, Howard ; Jenkins, Jon M. ; Jensen, Eric L.N. ; Kane, Stephen ; Kull, Ilya ; Latham, David W. ; Lissauer, Jack J. ; Marcy, Geoffrey W. ; Mazeh, Tsevi ; Müller, Tobias W.A. ; Pepper, Joshua ; Quinn, Samuel N. ; Ragozzine, Darin ; Shporer, Avi ; Steffen, Jason H. ; Torres, Guillermo ; Windmiller, Gur ; Borucki, William J. / KEPLER-1647B : The LARGEST and LONGEST-PERIOD KEPLER TRANSITING CIRCUMBINARY PLANET. In: Astrophysical Journal. 2016 ; Vol. 827, No. 1.
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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.",
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Kostov, VB, Orosz, JA, Welsh, WF, Doyle, LR, Fabrycky, DC, Haghighipour, N, Quarles, B, Short, DR, Cochran, WD, Endl, M, Ford, EB, Gregorio, J, Hinse, TC, Isaacson, H, Jenkins, JM, Jensen, ELN, Kane, S, Kull, I, Latham, DW, Lissauer, JJ, Marcy, GW, Mazeh, T, Müller, TWA, Pepper, J, Quinn, SN, Ragozzine, D, Shporer, A, Steffen, JH, Torres, G, Windmiller, G & Borucki, WJ 2016, 'KEPLER-1647B: The LARGEST and LONGEST-PERIOD KEPLER TRANSITING CIRCUMBINARY PLANET', Astrophysical Journal, vol. 827, no. 1, 86. https://doi.org/10.3847/0004-637X/827/1/86

KEPLER-1647B : The LARGEST and LONGEST-PERIOD KEPLER TRANSITING CIRCUMBINARY PLANET. / Kostov, Veselin B.; Orosz, Jerome A.; Welsh, William F.; Doyle, Laurance R.; Fabrycky, Daniel C.; Haghighipour, Nader; Quarles, Billy; Short, Donald R.; Cochran, William D.; Endl, Michael; Ford, Eric B.; Gregorio, Joao; Hinse, Tobias C.; Isaacson, Howard; Jenkins, Jon M.; Jensen, Eric L.N.; Kane, Stephen; Kull, Ilya; Latham, David W.; Lissauer, Jack J.; Marcy, Geoffrey W.; Mazeh, Tsevi; Müller, Tobias W.A.; Pepper, Joshua; Quinn, Samuel N.; Ragozzine, Darin; Shporer, Avi; Steffen, Jason H.; Torres, Guillermo; Windmiller, Gur; Borucki, William J.

In: Astrophysical Journal, Vol. 827, No. 1, 86, 10.08.2016.

Research output: Contribution to journalArticle

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T2 - The LARGEST and LONGEST-PERIOD KEPLER TRANSITING CIRCUMBINARY PLANET

AU - Kostov, Veselin B.

AU - Orosz, Jerome A.

AU - Welsh, William F.

AU - Doyle, Laurance R.

AU - Fabrycky, Daniel C.

AU - Haghighipour, Nader

AU - Quarles, Billy

AU - Short, Donald R.

AU - Cochran, William D.

AU - Endl, Michael

AU - Ford, Eric B.

AU - Gregorio, Joao

AU - Hinse, Tobias C.

AU - Isaacson, Howard

AU - Jenkins, Jon M.

AU - Jensen, Eric L.N.

AU - Kane, Stephen

AU - Kull, Ilya

AU - Latham, David W.

AU - Lissauer, Jack J.

AU - Marcy, Geoffrey W.

AU - Mazeh, Tsevi

AU - Müller, Tobias W.A.

AU - Pepper, Joshua

AU - Quinn, Samuel N.

AU - Ragozzine, Darin

AU - Shporer, Avi

AU - Steffen, Jason H.

AU - Torres, Guillermo

AU - Windmiller, Gur

AU - Borucki, William J.

PY - 2016/8/10

Y1 - 2016/8/10

N2 - 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.

AB - 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.

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Kostov VB, Orosz JA, Welsh WF, Doyle LR, Fabrycky DC, Haghighipour N et al. KEPLER-1647B: The LARGEST and LONGEST-PERIOD KEPLER TRANSITING CIRCUMBINARY PLANET. Astrophysical Journal. 2016 Aug 10;827(1). 86. https://doi.org/10.3847/0004-637X/827/1/86