| Issue |
Europhys. Lett.
Volume 75, Number 5, September 2006
|
|
|---|---|---|
| Page(s) | 832 - 838 | |
| Section | Geophysics, astronomy, and astrophysics | |
| DOI | https://doi.org/10.1209/epl/i2006-10172-y | |
| Published online | 28 July 2006 | |
Persistence of small-scale anisotropy of magnetic turbulence as observed in the solar wind
1
Liquid Crystal Laboratory, INFM/CNR - Ponte P. Bucci, Cubo 31C 87036 Rende (CS), Italy
2
Dipartimento di Fisica, Università della Calabria, and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Unità di Cosenza Ponte P. Bucci, Cubo 31C, 87036 Rende (CS), Italy
3
Istituto di Fisica dello Spazio Interplanetario-INAF - Via Fosso del Cavaliere 00133 Roma, Italy
Received:
14
June
2006
Accepted:
12
July
2006
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.
PACS: 96.50.Ci – Solar wind plasma; sources of solar wind / 95.30.Qd – Magnetohydrodynamics and plasmas / 52.35.Ra – Plasma turbulence
© EDP Sciences, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.