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Driven-disk model for binaries with precessing donor star. Three-dimensional simulations

2000/03/24 by D. V. Bisikalo, A. A. Boyarchuk, O. A. Kuznetsov +1
Physics and Astronomy · #astro-ph

paper · pdf

published as Astron. Zh. 1999, v.76, p.672 (Astron. Reports v.43, p.587) · LaTeX, 10 pages

arxiv created 2000/03/24 · arxiv updated 2009/12/01

Abstract

We present the results of three-dimensional numerical simulations of mass transfer in semi-detached binary with a donor star whose rotation vector precesses around the orbital rotation axis of the binary in the observer's coordinate frame. The calculations support our previous model of flow without a `hot spot'. Characteristic features of the flow in this model, such as the formation of an circumbinary envelope, the absence of a `hot spot' at the edge of the accretion disk, and the formation of a shock wave along the edge of the stream, are also present in the solution for a binary with precessing donor star. The parameters of accretion disk and of the structure of the near-disk regions recur with the precessional period of the rotation axis of donor star.

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