Eccentric Eclipsing Binary YY Sagittarii

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Authors	WOLF Marek NIARCHOS P.G. GAZEAS K.D. MANIMANIS V.N. KOTKOVÁ Lenka PASCHKE Anton ZEJDA Miloslav
Year of publication	2006
Type	Article in Periodical
Magazine / Source	Astrophysics and Space Science
MU Faculty or unit	Faculty of Science
Citation
Field	Astronomy and astrophysics
Keywords	eclipsing binary;eccentric;YY Sgr
Description	Seven new precise times of minimum light have been gathered for the triple eccentric eclipsing binary YY Sgr (P = 2d.63, e = 0.16). Its O--C diagram is presented and improved elements of the apsidal motion and the light-time effect are given. We found a new short period of the third body of about 18.5 years in an eccentric orbit (e3 cca 0.4).
Related projects:	Fotometrický výzkum zákrytových dvojhvězd