Matter flow formation in semidetached eclipsing binaries of AO Cassiopeiae type

Details Matter flow formation in semidetached eclipsing binaries of AO Cassiopeiae type Matter flow formation in semidetached eclipsing binaries of AO Cassiopeiae type

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995azh....72..696k&link_type=abstract

Astronomicheskij Zhurnal, vol. 72, p. 696

Physics

Eclipsing Binary Stars, Mass Flow, A Stars, O Stars, Flow Stability, Lagrangian Equilibrium Points, Matter (Physics), Euler Equations Of Motion, Stellar Atmospheres

Scientific paper

We determined, by means of calculations in the frame of nonstationary hydrodynamics in Euler's formulation using the method of large particles and taking into account our analysis of observational data, the properties of the matter flow near the first Lagrangian point for the semidetached systems AO Cas, V448 Cyg, and XZ Cep. A flow of matter in the direction of the second component arises when one of the system's components expands and the inner layers of its atmosphere reach the first Lagrangian point. This flow has axial symmetry, its size is about 20 percent that of the star of its origin, and the matter exchange rate is about 10 exp -7 solar mass/yr. Such parameters of the matter flow from AO Cas type stars are considerably lower than those for W Ser eclipsing binaries.

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