Abstract
The motion of a rotating star in a close binary system with conservative mass exchange is considered. In contrast to the Paczyński-Huang model, the new model applied examines the relative motion of a star along an elliptical orbit in a close binary system, taking into account the mutual gravitation between the stars, reactive forces, the gravitation exered on the stars by the mass-transfer stream, and perturbations due to the rotation of the accreting star. The variations of the semi-major axis and eccentricity of the orbit and the orbital angular velocity of the accreting star as a function of the component-mass ratio q are determined. The results are applied to the BF Aurigae system.
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Original Russian Text © A.A. Medvedeva, S.A. Gasanov, 2014, published in Astronomicheskii Zhurnal, 2014, Vol. 91, No. 8, pp. 643–651.
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Medvedeva, A.A., Gasanov, S.A. Elliptical motion of a star in a close binary system. Astron. Rep. 58, 554–562 (2014). https://doi.org/10.1134/S1063772914080046
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DOI: https://doi.org/10.1134/S1063772914080046