Transit timing observations from Kepler. IV. Confirmation of four multiple-planet systems by simple physical models
Article
Article Title | Transit timing observations from Kepler. IV. Confirmation of four multiple-planet systems by simple physical models |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Fabrycky, Daniel C. (Author), Ford, Eric B. (Author), Steffen, Jason H. (Author), Rowe, Jason F. (Author), Carter, Joshua A. (Author), Moorhead, Althea V. (Author), Batalha, Natalie M. (Author), Borucki, William J. (Author), Bryson, Steve (Author), Buchhave, Lars A. (Author), Christiansen, Jessie L. (Author), Ciardi, David R. (Author), Cochran, William D. (Author), Endl, Michael (Author), Fanelli, Michael N. (Author), Fischer, Debra (Author), Fressin, Francois (Author), Geary, John (Author), Haas, Michael R. (Author), Hall, Jennifer R. (Author), Holman, Matthew J. (Author), Jenkins, Jon M. (Author), Koch, David G. (Author), Latham, David W. (Author), Li, Jie (Author), Lissauer, Jack J. (Author), Lucas, Philip (Author), Marcy, Geoffrey W. (Author), Mazeh, Tsevi (Author), McCauliff, Sean (Author), Quinn, Samuel (Author), Ragozzine, Darin (Author), Sasselov, Dimitar (Author) and Shporer, Avi (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 750 (2), pp. 114-130 |
Article Number | 114 |
Number of Pages | 17 |
Year | 2012 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-637X/750/2/114 |
Web Address (URL) | http://iopscience.iop.org/article/10.1088/0004-637X/750/2/114 |
Abstract | Eighty planetary systems of two or more planets are known to orbit stars other than the Sun. For most, the data can be sufficiently explained by non-interacting Keplerian orbits, so the dynamical interactions of these systems have not been observed. Here we present four sets of light curves from the Kepler spacecraft, each which of shows multiple planets transiting the same star. Departure of the timing of these transits from strict periodicity indicates that the planets are perturbing each other: the observed timing variations match the forcing frequency of the other planet. This confirms that these objects are in the same system. Next we limit their masses to the planetary regime by requiring the system remain stable for astronomical timescales. Finally, we report dynamical fits to the transit times, yielding possible values for the planets' masses and eccentricities. As the timespan of timing data increases, dynamical fits may allow detailed constraints on the systems' architectures, even in cases for which high-precision Doppler follow-up is impractical. |
Keywords | methods: statistical; planetary systems; planets and satellites detection; dynamical evolution and stability; stars; KID 10358759/KOI-738/Kepler-29, KID 3832474/KOI-806/Kepler-30, KID 9347899/KOI-935/Kepler-31, KID 9787239/KOI-952/Kepler-32 |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | For access to this article, please click on the URL link provided. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | University of California, United States |
University of Florida, United States | |
Fermilab Cosmic Physics Centre, United States | |
NASA Ames Research Center, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
San Jose University, United States | |
University of Copenhagen, Denmark | |
SETI Institute, United States | |
National Aeronautics and Space Administration (NASA), United States | |
University of Texas at Austin, United States | |
Massey University, New Zealand | |
University of Hertfordshire, United Kingdom | |
Tel Aviv University, Israel | |
Las Cumbres Observatory, United States |
https://research.usq.edu.au/item/q4327/transit-timing-observations-from-kepler-iv-confirmation-of-four-multiple-planet-systems-by-simple-physical-models
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