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- W2012026232 endingPage "33" @default.
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- W2012026232 abstract "We present the results of a search through the photometric database of eclipsing Kepler binaries (Prsa et al. 2011; Slawson et al. 2011) looking for evidence of hierarchical triple star systems. The presence of a third star orbiting the binary can be inferred from eclipse timing variations. We apply a simple algorithm in an automated determination of the eclipse times for all 2157 binaries. The calculated eclipse times, based on a constant period model, are subtracted from those observed. The resulting O-C (observed minus calculated times) curves are then visually inspected for periodicities in order to find triple-star candidates. After eliminating false positives due to the beat frequency between the ~1/2-hour Kepler cadence and the binary period, 39 candidate triple systems were identified. The periodic O-C curves for these candidates were then fit for contributions from both the classical Roemer delay and so-called physical delay, in an attempt to extract a number of the system parameters of the triple. We discuss the limitations of the information that can be inferred from these O-C curves without further supplemental input, e.g., ground-based spectroscopy. Based on the limited range of orbital periods for the triple star systems to which this search is sensitive, we can extrapolate to estimate that at least 20% of all close binaries have tertiary companions." @default.
- W2012026232 created "2016-06-24" @default.
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- W2012026232 date "2013-04-12" @default.
- W2012026232 modified "2023-10-12" @default.
- W2012026232 title "TRIPLE-STAR CANDIDATES AMONG THE<i>KEPLER</i>BINARIES" @default.
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- W2012026232 doi "https://doi.org/10.1088/0004-637x/768/1/33" @default.
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