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- W3102388769 abstract "Time series BVI photometry is presented for 16 short-period variables located in the central region of the globular cluster NGC 6397. The sample includes 9 newly detected variables. The light curve of cataclysmic variable CV6 shows variability with a period of 0.2356 days. We confirm an earlier reported period of 0.472 days for cataclysmic variable CV1. Phased light curves of both CVs exhibit sine-like light curves, with two minima occurring during each orbital cycle. The secondary component of CV1 has a low average density of 0.83 g/cm^{3} indicating that it cannot be a normal main sequence star. Variables among the cluster blue stragglers include a likely detached eclipsing binary with orbital period of 0.787 days, three new SX Phe stars (one of which has the extremely short period of 0.0215 days), and three low amplitude variables which are possible gamma Doradus variables." @default.
- W3102388769 created "2020-11-23" @default.
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- W3102388769 date "2003-05-01" @default.
- W3102388769 modified "2023-09-23" @default.
- W3102388769 title "Time Series Photometry of Variable Stars in the Globular Cluster NGC 6397" @default.
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- W3102388769 doi "https://doi.org/10.1086/374236" @default.
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