Persistence of small-scale anisotropy of magnetic turbulence as observed in the solar wind

被引：29
作者：
Sorriso-Valvo, L.
Carbone, V.
Bruno, R.
Veltri, P.
机构：
[1] CNR, INFM, Liquid Crystal Lab, I-87036 Arcavacata Di Rende, CS, Italy
[2] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy
[3] Consorzio Nazl Interuniv Sci Fis Mat, Unita Cosenza, I-87036 Arcavacata Di Rende, CS, Italy
[4] INAF, Ist Fis Spazio Interplanetario, I-00133 Rome, Italy
来源：
EUROPHYSICS LETTERS | 2006年 / 75卷 / 05期
关键词：
D O I：
10.1209/epl/i2006-10172-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The anisotropy of magnetohydrodynamic turbulence is investigated by using solar wind data from the Helios 2 spacecraft. We investigate the behaviour of the complete high-order moment tensors of magnetic field increments and we compare the usual longitudinal structure functions which have both isotropic and anisotropic contributions, to the fully anisotropic contribution. Scaling exponents have been extracted by an interpolation scaling function. Unlike the usual turbulence in fluid flows, small-scale magnetic fluctuations remain anisotropic. We discuss the radial dependence of both anisotropy and intermittency and their relationship.
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页码：832 / 838
页数：7
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