Comparison of multi-point measurements of current sheet structure and analytical models

被引：33

作者：

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

Petrukovich, A. A. ^{[1
]}

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

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

Popov, V. Y. ^{[1
,3
]}

Nakamura, R. ^{[4
]}

Runov, A. ^{[5
]}

Apatenkov, S. ^{[6
]}

机构：

[1] Russian Acad Sci, Inst Space Res, Moscow V71, Russia

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

[3] Moscow MV Lomonosov State Univ, Fac Phys, Moscow, Russia

[4] Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria

[5] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA

[6] St Petersburg State Univ, St Petersburg, Russia

来源：

ANNALES GEOPHYSICAE | 2008年 / 26卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

magnetospheric physics; magnetotail; space plasma physics; kinetic and MHD theory; numerical simulation studies;

D O I：

10.5194/angeo-26-2749-2008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Current density profiles of 22 thin current sheets, crossed by four Cluster spacecraft in the magnetotail are compared with the self-consistent model of anisotropic 1-D equilibrium, including several species of quasi-adiabatic (transient) ions and drifting electrons. In order to examine ion-scale features of the current density profile Cluster data from the 2001 and 2004 tail seasons were used when the spacecraft separation was about 2000 and 1000 km, respectively, while electron-scale features are studied using Cluster data from the 2003 season , when the spacecraft separation was about 200 km. The model ion and electron current density peaks embedded in a background plasma sheet successfully reproduce observed profiles. Stability criteria of the model current sheet are also consistent with the experiment.

引用

页码：2749 / 2758

页数：10

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