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Paper: The Unique Triple System V577 Oph. 20 Years of Observations
Volume: 435, Binaries – Key to Comprehension of the Universe
Page: 323
Authors: Volkov, I.; Volkova, N.
Abstract: The eclipsing binary V577 Oph (F0V+F1V, V = 10.98, P = 6d.08, e = 0.2) is of great interest due to pulsating nature of its primary component (Volkov 1990). The deep eclipses (see Fig. 1) allow one to derive the absolute parameters of the stars with high precision. The rate of apsidal motion, could provide us with valuable information about the internal structure of the pulsating component.
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