KOI-142, the king of transit variations, is a pair of planets near the 2:1 resonance

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KOI-142, the king of transit variations, is a pair of planets near the 2:1 resonance. / Nesvorný, David; Kipping, David; Terrell, Dirk; Hartman, Joel; Bakos, Gáspár A.; Buchhave, Lars A.

In: Astrophysical Journal, Vol. 777, No. 1, 3, 01.11.2013.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Nesvorný, D, Kipping, D, Terrell, D, Hartman, J, Bakos, GA & Buchhave, LA 2013, 'KOI-142, the king of transit variations, is a pair of planets near the 2:1 resonance', Astrophysical Journal, vol. 777, no. 1, 3. https://doi.org/10.1088/0004-637X/777/1/3

APA

Nesvorný, D., Kipping, D., Terrell, D., Hartman, J., Bakos, G. A., & Buchhave, L. A. (2013). KOI-142, the king of transit variations, is a pair of planets near the 2:1 resonance. Astrophysical Journal, 777(1), [3]. https://doi.org/10.1088/0004-637X/777/1/3

Vancouver

Nesvorný D, Kipping D, Terrell D, Hartman J, Bakos GA, Buchhave LA. KOI-142, the king of transit variations, is a pair of planets near the 2:1 resonance. Astrophysical Journal. 2013 Nov 1;777(1). 3. https://doi.org/10.1088/0004-637X/777/1/3

Author

Nesvorný, David ; Kipping, David ; Terrell, Dirk ; Hartman, Joel ; Bakos, Gáspár A. ; Buchhave, Lars A. / KOI-142, the king of transit variations, is a pair of planets near the 2:1 resonance. In: Astrophysical Journal. 2013 ; Vol. 777, No. 1.

Bibtex

@article{70950b9e0dde4fe8a02d63bde23ccf36,
title = "KOI-142, the king of transit variations, is a pair of planets near the 2:1 resonance",
abstract = "The transit timing variations (TTVs) can be used as a diagnostic of gravitational interactions between planets in a multi-planet system. Many Kepler Objects of Interest (KOIs) exhibit significant TTVs, but KOI-142.01 stands out among them with an unrivaled ≃12 hr TTV amplitude. Here we report a thorough analysis of KOI-142.01's transits. We discover periodic transit duration variations (TDVs) of KOI-142.01 that are nearly in phase with the observed TTVs. We show that KOI-142.01's TTVs and TDVs uniquely detect a non-transiting companion with a mass ≃0.63 that of Jupiter (KOI-142c). KOI-142.01's mass inferred from the transit variations is consistent with the measured transit depth, suggesting a Neptune-class planet (KOI-142b). The orbital period ratio P /P = 2.03 indicates that the two planets are just wide of the 2:1 resonance. The present dynamics of this system, characterized here in detail, can be used to test various formation theories that have been proposed to explain the near-resonant pairs of exoplanets.",
author = "David Nesvorn{\'y} and David Kipping and Dirk Terrell and Joel Hartman and Bakos, {G{\'a}sp{\'a}r A.} and Buchhave, {Lars A.}",
year = "2013",
month = nov,
day = "1",
doi = "10.1088/0004-637X/777/1/3",
language = "English",
volume = "777",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing, Inc",
number = "1",

}

RIS

TY - JOUR

T1 - KOI-142, the king of transit variations, is a pair of planets near the 2:1 resonance

AU - Nesvorný, David

AU - Kipping, David

AU - Terrell, Dirk

AU - Hartman, Joel

AU - Bakos, Gáspár A.

AU - Buchhave, Lars A.

PY - 2013/11/1

Y1 - 2013/11/1

N2 - The transit timing variations (TTVs) can be used as a diagnostic of gravitational interactions between planets in a multi-planet system. Many Kepler Objects of Interest (KOIs) exhibit significant TTVs, but KOI-142.01 stands out among them with an unrivaled ≃12 hr TTV amplitude. Here we report a thorough analysis of KOI-142.01's transits. We discover periodic transit duration variations (TDVs) of KOI-142.01 that are nearly in phase with the observed TTVs. We show that KOI-142.01's TTVs and TDVs uniquely detect a non-transiting companion with a mass ≃0.63 that of Jupiter (KOI-142c). KOI-142.01's mass inferred from the transit variations is consistent with the measured transit depth, suggesting a Neptune-class planet (KOI-142b). The orbital period ratio P /P = 2.03 indicates that the two planets are just wide of the 2:1 resonance. The present dynamics of this system, characterized here in detail, can be used to test various formation theories that have been proposed to explain the near-resonant pairs of exoplanets.

AB - The transit timing variations (TTVs) can be used as a diagnostic of gravitational interactions between planets in a multi-planet system. Many Kepler Objects of Interest (KOIs) exhibit significant TTVs, but KOI-142.01 stands out among them with an unrivaled ≃12 hr TTV amplitude. Here we report a thorough analysis of KOI-142.01's transits. We discover periodic transit duration variations (TDVs) of KOI-142.01 that are nearly in phase with the observed TTVs. We show that KOI-142.01's TTVs and TDVs uniquely detect a non-transiting companion with a mass ≃0.63 that of Jupiter (KOI-142c). KOI-142.01's mass inferred from the transit variations is consistent with the measured transit depth, suggesting a Neptune-class planet (KOI-142b). The orbital period ratio P /P = 2.03 indicates that the two planets are just wide of the 2:1 resonance. The present dynamics of this system, characterized here in detail, can be used to test various formation theories that have been proposed to explain the near-resonant pairs of exoplanets.

UR - http://www.scopus.com/inward/record.url?scp=84886064622&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/777/1/3

DO - 10.1088/0004-637X/777/1/3

M3 - Journal article

AN - SCOPUS:84886064622

VL - 777

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 3

ER -

ID: 77577276