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Persistence of small-scale anisotropy of magnetic turbulence as observed in the solar wind (Articolo in rivista)

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Persistence of small-scale anisotropy of magnetic turbulence as observed in the solar wind (Articolo in rivista) (literal)

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Sorriso-Valvo, L; Carbone, V; Bruno, R; Veltri, P (2006)
Persistence of small-scale anisotropy of magnetic turbulence as observed in the solar wind
in Europhysics letters (Print)
(literal)

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CNR, INFM, Liquid Crystal Lab, I-87036 Arcavacata Di Rende, CS, Italy; Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy; Consorzio Nazl Interuniv Sci Fis Mat, Unita Cosenza, I-87036 Arcavacata Di Rende, CS, Italy; INAF, Ist Fis Spazio Interplanetario, I-00133 Rome, Italy (literal)

Titolo

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

Abstract

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. (literal)

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