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Scale-free texture of the fast solar wind
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Hnat, B., Chapman, Sandra C., Gogoberidze, G. and Wicks, R. T. (2011) Scale-free texture of the fast solar wind. Physical Review E, Volume 84 (Number 6). Article number 065401. doi:10.1103/PhysRevE.84.065401 ISSN 1539-3755.
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Official URL: http://dx.doi.org/10.1103/PhysRevE.84.065401
Abstract
The higher-order statistics of magnetic field magnitude fluctuations in the fast quiet solar wind are quantified systematically, scale by scale. We find a single global non-Gaussian scale-free behavior from minutes to over 5 h. This spans the signature of an inertial range of magnetohydrodynamic turbulence and a ∼1/f range in magnetic field components. This global scaling in field magnitude fluctuations is an intrinsic component of the underlying texture of the solar wind and puts a strong constraint on any theory of solar corona and the heliosphere. Intriguingly, the magnetic field and velocity components show scale-dependent dynamic alignment outside of the inertial range.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Physical Review E | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1539-3755 | ||||
| Official Date: | December 2011 | ||||
| Dates: |
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| Volume: | Volume 84 | ||||
| Number: | Number 6 | ||||
| Article Number: | Article number 065401 | ||||
| DOI: | 10.1103/PhysRevE.84.065401 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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