Anisotropic MHD turbulence in the interstellar medium and solar wind

被引：0

作者：

Bhattacharjee, A ^{[1
]}

Ng, CS ^{[1
]}

机构：

[1] Univ Iowa, Dept Phys & Astron, Ctr Magnet Reconnect Studies, Iowa City, IA 52242 USA

来源：

SOLAR WIND TEN, PROCEEDINGS | 2003年 / 679卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A theoretical model is given of anisotropic magnetohydrodynamic turbulence in the interstellar medium and the solar wind. The model is motivated by observations that show significant deviations from the Kolmogorov power-law. Dimensional and heuristic arguments are given and critically assessed. On the basis of the weak turbulence approximation in which three-wave interactions dominate, analytical and numerical results are obtained for the anisotropic energy spectrum produced by the random scattering of shear Alfven waves propagating parallel to a large-2 scale magnetic field. The energy spectrum is shown to be proportional to k(perpendicular to)(-2), qualitatively consistent with some observations and wave kinetic theory.

引用

页码：433 / 438

页数：6

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