Journal
ASTROPHYSICAL JOURNAL
Volume 758, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/758/2/120
Keywords
magnetic fields; magnetohydrodynamics (MHD); plasmas; solar wind; turbulence
Categories
Funding
- NASA [NNN06AA01C, NNX09AE41G]
- Leverhulme Trust Network for Magnetized Plasma Turbulence
- NASA [119057, NNX09AE41G] Funding Source: Federal RePORTER
- STFC [ST/I002138/1, ST/F002505/2] Funding Source: UKRI
Ask authors/readers for more resources
We present a measurement of the scale-dependent, three-dimensional structure of the magnetic field fluctuations in inertial range solar wind turbulence with respect to a local, physically motivated coordinate system. The Alfvenic fluctuations are three-dimensionally anisotropic, with the sense of this anisotropy varying from large to small scales. At the outer scale, the magnetic field correlations are longest in the local fluctuation direction, consistent with Alfven waves. At the proton gyroscale, they are longest along the local mean field direction and shortest in the direction perpendicular to the local mean field and the local field fluctuation. The compressive fluctuations are highly elongated along the local mean field direction, although axially symmetric perpendicular to it. Their large anisotropy may explain why they are not heavily damped in the solar wind.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available