On apparent temperature in low-frequency Alfvénic turbulence

Yasuhiro Nariyuki*

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

8 被引用数 (Scopus)

抄録

Low-frequency, parallel propagating Alfvénic turbulence in collisionless plasmas is theoretically studied. Alfvénic turbulence is derived as an equilibrium state (Beltrami field) in the magnetohydrodynamic equations with the pressure anisotropy and multi-species of ions. It is shown that the conservation of the total "apparent temperature" corresponds to the Bernoulli law. A simple model of the radially expanding solar wind including Alfvénic turbulence is also discussed. The conversion of the wave energy in the "apparent temperature" into the real temperature is facilitated with increasing radial distance.

本文言語英語
論文番号084504
ジャーナルPhysics of Plasmas
19
8
DOI
出版ステータス出版済み - 2012/08

ASJC Scopus 主題領域

  • 凝縮系物理学

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