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Paper: The Light-Time Effect in UV Leonis
Volume: 335, The Light-Time Effect in Astrophysics: Causes and Cures of the O - C diagram
Page: 287
Authors: Elmasli, A.; Aksu, O.; Kara, A.; Albayrak, B.; Ak, T.; Selam, S.O.
Abstract: A period study of the eclipsing binary UV Leonis based on the extensive series of published minimum times indicates a periodic O – C variation for the system. The variation can be attributed to the light-time effect due to a third body with a period of 71.73 ± 0.90 years in the system. The analysis yields a light-time semi-amplitude of 0.006 ± 0.0012 day and an orbital eccentricity of 0.30 ± 0.08. Adopting the total mass of UV Leo, the mass of the third body assumed in a co-planar orbit with the binary is M3 = 0.096 ± 0.038 MSolar and the semi-major axis of its orbit is a3 = 26.40 ± 1.53AU.
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