Over-reflection instability and the developed turbulence in accretion disks in close binaries

被引：0
|
作者：
A. M. Fridman
D. V. Bisikalo
A. A. Boyarchuk
Yu. M. Torgashin
L. A. Pustil’nik
机构：
[1] Russian Academy of Sciences,Institute of Astronomy
[2] Kurchatov Institute,undefined
[3] Moscow Physical-Technical Institute (State University),undefined
[4] Ben Gurion University,undefined
来源：
Astronomy Reports | 2009年 / 53卷
关键词：
97.10.Gz; 97.80.Fk; 95.30.Lz; 98.35.Jk;
D O I：
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学科分类号：
摘要：
The results of studies of the over-reflection mechanism for the development of hydrodynamical instability in the accretion disks of close binary stars are presented. The driving of this instability is shown to result in the generation of regular, large-scale, spiral-vortex structures and the development of turbulence in the disk. The derived estimates of the coefficient of turbulent viscosity are in good agreement with the observations, and are able to explain the high rate of angular-momentum transfer and the measured accretion rate. The developed theoretical model is used with the observational data to derive a power-law spectrum for the developed turbulence.
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页码：750 / 768
页数：18
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