2019
DOI: 10.1093/mnras/stz2508
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V752 Cen - A triple-lined spectroscopic contact binary with sudden and continuous period changes

Abstract: V752 Cen is a triple-lined spectroscopic contact binary. Its multi-color light curves were obtained in the years 1971 and 2018, independently. Photometric analyses reveal that the two sets of light curves produce almost consistent results. It contains a Wsubtype totally eclipsing binary, and its mass ratio and fill-out factor are q = 3.35(1) and f = 29(2) %. The absolute elements of its two component stars were determined to be M 1 = 0.39(2)M ⊙ , M 2 = 1.31(7)M ⊙ , R 1 = 0.77(1)R ⊙ , R 2 = 1.30(2)R ⊙ , L 1 = 0… Show more

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