Evidence of diffusion regions at a subsolar magnetopause crossing

被引：341

作者：

Mozer, FS ^{[1
]}

Bale, SD ^{[1
]}

Phan, TD ^{[1
]}

机构：

[1] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.89.015002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

On 1 April 2001, the Polar satellite crossed a subsolar magnetopause associated with antiparallel magnetic fields. Over a width similar to6 magnetosheath ion skin depths (similar to3 magnetospheric ion skin depths), perpendicular ion flows different from ExB/B-2 as well as Hall magnetic and electric field signatures were observed. At a smaller scale, the electron flow decoupled from the magnetic field near a deep minimum in the magnetic field strength. Separatrices were identified as boundaries of low frequency electric field turbulence associated with density minima and parallel electric fields. The reconnection rate was less than 2% of the asymptotic Alfven speed.

引用

页数：4

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