期刊
ASTROPHYSICAL JOURNAL
卷 769, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/769/2/152
关键词
planets and satellites: dynamical evolution and stability; planets and satellites: formation; planets and satellites: individual (Kepler-16b, Kepler-34b, Kepler-35b)
资金
- Russian Foundation for Basic Research [10-02-00383]
- Russian Academy of Sciences
The planet Kepler-16b is known to follow a circumbinary orbit around a system of two main-sequence stars. We construct stability diagrams in the pericentric distance-eccentricity plane, which show that Kepler-16b is in a hazardous vicinity to the chaos domain-just between the instability teeth in the space of orbital parameters. Kepler-16b survives, because it is close to the stable half-integer 11/2 orbital resonance with the central binary, safe inside a resonance cell bounded by the unstable 5/1 and 6/1 resonances. The neighboring resonance cells are vacant, because they are purged by Kepler-16b, due to overlap of first-order resonances with the planet. The newly discovered planets Kepler-34b and Kepler-35b are also safe inside resonance cells at the chaos border.
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