Charged-Particle Transport in Magnetic Turbulence with Local Anisotropy from a Multi-Scale Synthesis
Abstract
The localized anisotropic type turbulence (Goldreich and Sridhar 1995) is supposed to have different effects on charged particle transport. In the Sun and Jokipii (2015) we synthesized a globally anisotropic turbulent magnetic field and found that it has similar particle transport effects. We study here the effects from a multi-scale synthesis of the magnetic field fluctuations with the scale-dependent, localized anisotropic feature incorporated. We run test particle simulations to calculate the transport coefficients for charged particles with different energies. We found that the local anisotropy has the significant difference from the previous model in the effect on charged particle transport. The parallel transport decreases while the perpendicular transport increases compared with the isotropic and globally anisotropic field models, the difference is enhanced as the local anisotropy is enhanced, and there is an order of magnitude increase in the ratio of perpendicular to parallel transport coefficients.
- Publication:
-
Solar Heliospheric and INterplanetary Environment (SHINE 2016)
- Pub Date:
- July 2016
- Bibcode:
- 2016shin.confE..70S