Architecture of Kepler's multi-transiting systems. II. New investigations with twice as many candidates
Article
Article Title | Architecture of Kepler's multi-transiting systems. II. New investigations with twice as many candidates |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Fabrycky, Daniel C. (Author), Lissauer, Jack J. (Author), Ragozzine, Darin (Author), Rowe, Jason F. (Author), Steffen, Jason H. (Author), Agol, Eric (Author), Barclay, Thomas (Author), Batalha, Natalie (Author), Borucki, William (Author), Ciardi, David R. (Author), Ford, Eric B. (Author), Gautier, Thomas N. (Author), Geary, John C. (Author), Holman, Matthew J. (Author), Jenkins, Jon M. (Author), Li, Jie (Author), Morehead, Robert C. (Author), Morris, Robert L. (Author), Shporer, Avi (Author), Smith, Jeffrey C. (Author), Still, Martin (Author) and Van Cleve, Jeffrey (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 790 (2), pp. 146-157 |
Article Number | 146 |
Number of Pages | 12 |
Year | 2014 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-637X/790/2/146 |
Web Address (URL) | http://iopscience.iop.org/article/10.1088/0004-637X/790/2/146 |
Abstract | We report on the orbital architectures of Kepler systems having multiple-planet candidates identified in the analysis of data from the first six quarters of Kepler data and reported by Batalha et al. (2013). These data show 899 transiting planet candidates in 365 multiple-planet systems and provide a powerful means to study the statistical properties of planetary systems. Using a generic mass-radius relationship, we find that only two pairs of planets in these candidate systems (out of 761 pairs total) appear to be on Hill-unstable orbits, indicating 96% of the candidate planetary systems are correctly interpreted as true systems. We find that planet pairs show little statistical preference to be near mean-motion resonances. We identify an asymmetry in the distribution of period ratios near first-order resonances (e.g., 2:1, 3:2), with an excess of planet pairs lying wide of resonance and relatively few lying narrow of resonance. Finally, based upon the transit duration ratios of adjacent planets in each system, we find that the interior planet tends to have a smaller transit impact parameter than the exterior planet does. This finding suggests that the mode of the mutual inclinations of planetary orbital planes is in the range 1.°0-2.°2, for the packed systems of small planets probed by these observations. |
Keywords | methods: statisticalplanetary systemsplanets and satellites: detectionplanets 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 |
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 |
NASA Ames Research Center, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Northwestern University, United States | |
University of Washington, United States | |
National Aeronautics and Space Administration (NASA), United States | |
Pennsylvania State University, United States | |
California Institute of Technology (Caltech), United States |
https://research.usq.edu.au/item/q42yv/architecture-of-kepler-s-multi-transiting-systems-ii-new-investigations-with-twice-as-many-candidates
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