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• W2985112362 abstract "Abstract 1SWASP J204932.94-654025.8 (hereafter J2049) is a newly discovered eclipsing binary system with an orbital period of 0.2299103 days. BVRc light curves (LCs) are presented and analyzed by using the 2013 version of the Wilson–Devinney (W–D) program. Because the observed LCs are asymmetric, a hot star-spot was employed on the secondary component during our analysis. We found that J2049 is a W-subtype shallow contact eclipsing binary system with an orbit inclination of 62∘.69  ± 0∘.95 and a mass ratio of q =1.326  ±  0.056. More importantly, we found the presence of a strong third light, with an average luminosity contribution of 31.3% of the total light. Based on times of the light minima, the orbital period changes of J2049 are studied for the first time, and there is no evidence for any significant dp/dt now. Considering the presence of the third light and the short time span of the eclipse times, more observations are needed in the future." @default.
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• W2985112362 date "2020-04-01" @default.
• W2985112362 modified "2023-10-16" @default.
• W2985112362 title "A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light" @default.
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• W2985112362 doi "https://doi.org/10.1016/j.newast.2019.101324" @default.
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