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- W2891321372 abstract "Using Campaign 15 data from the K2 mission, we have discovered a triply eclipsing triple star system: EPIC 249432662. The inner eclipsing binary system has a period of 8.23 d, with shallow ∼3 per cent eclipses. During the entire 80-d campaign, there is also a single eclipse event of a third body in the system that reaches a depth of nearly 50 per cent and has a total duration of 1.7 d, longer than for any previously known third-body eclipse involving unevolved stars. The binary eclipses exhibit clear eclipse timing variations. A combination of photodynamical modeling of the light curve, as well as seven follow-up radial velocity measurements, has led to a prediction of the subsequent eclipses of the third star with a period of 188 d. A campaign of follow-up ground-based photometry was able to capture the subsequent pair of third-body events as well as two further 8-d eclipses. A combined photo-spectro-dynamical analysis then leads to the determination of many of the system parameters. The 8-d binary consists of a pair of M stars, while most of the system light is from a K star around which the pair of M stars orbits." @default.
- W2891321372 created "2018-09-27" @default.
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- W2891321372 date "2018-11-22" @default.
- W2891321372 modified "2023-10-17" @default.
- W2891321372 title "Photodynamical analysis of the triply eclipsing hierarchical triple system EPIC 249432662" @default.
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- W2891321372 doi "https://doi.org/10.1093/mnras/sty3157" @default.
- W2891321372 hasPublicationYear "2018" @default.
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