Acceleration and transport of ions in turbulent current sheets: formation of non-maxwelian energy distribution

被引：25

作者：

Artemyev, A. V. ^{[1
,2
]}

Zelenyi, L. M. ^{[1
]}

Malova, H. V. ^{[1
,2
]}

Zimbardo, G. ^{[3
]}

Delcourt, D. ^{[4
]}

机构：

[1] RAS, Space Res Inst, Moscow 117901, Russia

[2] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia

[3] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata di Rende, Italy

[4] CNRS, Lab Phys Plasmas, St Maur Des Fosses, France

来源：

NONLINEAR PROCESSES IN GEOPHYSICS | 2009年 / 16卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

MAGNETOTAIL CURRENT SHEET; MODEL CURRENT SHEETS; THIN CURRENT SHEETS; EARTH PLASMA SHEET; MAGNETIC-FIELD; PARTICLE-ACCELERATION; NEUTRAL SHEET; MAGNETOHYDRODYNAMIC TURBULENCE; DISTANT MAGNETOTAIL; INNER MAGNETOSPHERE;

D O I：

10.5194/npg-16-631-2009

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The paper is devoted to particle acceleration in turbulent current sheet (CS). Our results show that the mechanism of CS particle interaction with electromagnetic turbulence can explain the formation of power law energy distributions. We study the ratio between adiabatic acceleration of particles in electric field in the presence of stationary turbulence and acceleration due to electric field in the case of dynamic turbulence. The correlation between average energy gained by particles and average particle residence time in the vicinity of the neutral sheet is discussed. It is also demonstrated that particle velocity distributions formed by particle-turbulence interaction are similar in essence to the ones observed near the far reconnection region in the Earth's magnetotail.

引用

页码：631 / 639

页数：9

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