期刊
SCIENCE
卷 333, 期 6049, 页码 1602-1606出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1210923
关键词
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资金
- NASA's Science Mission Directorate
- NASA [NNX08AR15G, HF-51267.01-A, HF-51272.01-A, NAS 5-26555, NNX09AB33G]
- Space Telescope Science Institute
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1007992] Funding Source: National Science Foundation
- NASA [NNX08AR15G, 94407] Funding Source: Federal RePORTER
We report the detection of a planet whose orbit surrounds a pair of low-mass stars. Data from the Kepler spacecraft reveal transits of the planet across both stars, in addition to the mutual eclipses of the stars, giving precise constraints on the absolute dimensions of all three bodies. The planet is comparable to Saturn in mass and size and is on a nearly circular 229-day orbit around its two parent stars. The eclipsing stars are 20 and 69% as massive as the Sun and have an eccentric 41-day orbit. The motions of all three bodies are confined to within 0.5 degrees of a single plane, suggesting that the planet formed within a circumbinary disk.
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