@article{Chen:2015:mnrasl/slv107,
author = {Chen, CHK and Matteini, L and Burgess, D and Horbury, T},
doi = {mnrasl/slv107},
journal = {Monthly Notices of the Royal Astronomical Society: Letters},
pages = {L64--L68},
title = {Magnetic field rotations in the solar wind at kinetic scales},
url = {http://dx.doi.org/10.1093/mnrasl/slv107},
volume = {453},
year = {2015}
}

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TY  - JOUR
AB  - The solar wind magnetic field contains rotations at a broad range of scales, which have been extensively studied in the magnetohydrodynamics range. Here, we present an extension of this analysis to the range between ion and electron kinetic scales. The distribution of rotation angles was found to be approximately lognormal, shifting to smaller angles at smaller scales almost self-similarly, but with small, statistically significant changes of shape. The fraction of energy in fluctuations with angles larger than α was found to drop approximately exponentially with α, with e-folding angle 9.8° at ion scales and 0.66° at electron scales, showing that large angles (α > 30°) do not contain a significant amount of energy at kinetic scales. Implications for kinetic turbulence theory and the dissipation of solar wind turbulence are discussed.
AU  - Chen,CHK
AU  - Matteini,L
AU  - Burgess,D
AU  - Horbury,T
DO  - mnrasl/slv107
EP  - 68
PY  - 2015///
SN  - 1745-3933
SP  - 64
TI  - Magnetic field rotations in the solar wind at kinetic scales
T2  - Monthly Notices of the Royal Astronomical Society: Letters
UR  - http://dx.doi.org/10.1093/mnrasl/slv107
UR  - http://hdl.handle.net/10044/1/33958
VL  - 453
ER  - 

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