Fully Developed Anisotropic Hydromagnetic Turbulence in Interplanetary Space
Abstract
The solar-wind magnetohydrodynamic turbulence is observed to be mainly made of Alfvénic fluctuations propagating away from the sun. It is shown that such an asymmetric state is a general consequence of the evolution of developed magnetohydrodynamic turbulence, which, starting from an initial asymmetry between modes with cross helicity + 1 and - 1, tends, as a consequence of nonlinear interactions, towards a state where the only modes left are those initially prevailing (with either cross helicity + 1 or - 1).
- Publication:
-
Physical Review Letters
- Pub Date:
- July 1980
- DOI:
- 10.1103/PhysRevLett.45.144
- Bibcode:
- 1980PhRvL..45..144D
- Keywords:
-
- Anisotropic Media;
- Interplanetary Space;
- Magnetohydrodynamic Turbulence;
- Solar Wind;
- Asymmetry;
- Propagation Modes;
- Relaxation (Mechanics);
- Vortices;
- Astrophysics;
- 96.50.Dj;
- 96.60.Vg;
- Interplanetary dust and gas;
- Particle emission solar wind