Architecture and dynamics of Kepler's candidate multiple transiting planet systems
Article
Article Title | Architecture and dynamics of Kepler's candidate multiple transiting planet systems |
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ERA Journal ID | 1058 |
Article Category | Article |
Authors | Lissauer, Jack J. (Author), Ragozzine, Darin (Author), Fabrycky, Daniel C. (Author), Steffen, Jason H. (Author), Ford, Eric B. (Author), Jenkins, Jon M. (Author), Shporer, Avi (Author), Holman, Matthew J. (Author), Rowe, Jason F. (Author), Quintana, Elisa V. (Author), Batalha, Natalie M. (Author), Borucki, William J. (Author), Bryson, Stephen T. (Author), Caldwell, Douglas A. (Author), Carter, Joshua A. (Author), Ciardi, David (Author), Dunham, Edward W. (Author), Fortney, Jonathan J. (Author), Gautier, Thomas N. (Author), Howell, Steve B. (Author), Koch, David G. (Author), Latham, David W. (Author), Marcy, Geoffrey W. (Author), Morehead, Robert C. (Author) and Sasselov, Dimitar (Author) |
Journal Title | Astrophysical Journal Supplement Series |
Journal Citation | 197 (1), pp. 8-33 |
Article Number | 8 |
Number of Pages | 26 |
Year | 2011 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0067-0049 |
1538-4365 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0067-0049/197/1/8 |
Web Address (URL) | http://iopscience.iop.org/article/10.1088/0067-0049/197/1/8 |
Abstract | About one-third of the ∼1200 transiting planet candidates detected in the first four months of Kepler data are members of multiple candidate systems. There are 115 target stars with two candidate transiting planets, 45 with three, 8 with four, and 1 each with five and six. We characterize the dynamical properties of these candidate multi-planet systems. The distribution of observed period ratios shows that the vast majority of candidate pairs are neither in nor near low-order mean-motion resonances. Nonetheless, there are small but statistically significant excesses of candidate pairs both in resonance and spaced slightly too far apart to be in resonance, particularly near the 2:1 resonance. We find that virtually all candidate systems are stable, as tested by numerical integrations that assume a nominal mass-radius relationship. Several considerations strongly suggest that the vast majority of these multi-candidate systems are true planetary systems. Using the observed multiplicity frequencies, we find that a single population of planetary systems that matches the higher multiplicities underpredicts the number of singly transiting systems. We provide constraints on the true multiplicity and mutual inclination distribution of the multi-candidate systems, revealing a population of systems with multiple super-Earth-size and Neptune-size planets with low to moderate mutual inclinations. |
Keywords | celestial mechanics; planetary systems; planets and satellites; dynamical evolution and stability; |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
519999. Other physical sciences not elsewhere classified | |
Public Notes | For access to this article, please click on the URL link provided. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | NASA Ames Research Center, United States |
Center for Astrophysics Harvard and Smithsonian, United States | |
University of California, United States | |
Fermilab Cosmic Physics Centre, United States | |
University of Florida, United States | |
National Aeronautics and Space Administration (NASA), United States | |
Las Cumbres Observatory, United States | |
SETI Institute, United States | |
San Jose University, United States | |
Lowell Observatory, United States | |
California Institute of Technology (Caltech), United States |
https://research.usq.edu.au/item/q435y/architecture-and-dynamics-of-kepler-s-candidate-multiple-transiting-planet-systems
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