Debye-scale plasma structures associated with magnetic-field-aligned electric fields

被引：338

作者：

Ergun, RE ^{[1
]}

Carlson, CW

McFadden, JP

Mozer, FS

Muschietti, L

Roth, I

Strangeway, RJ

机构：

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

[2] Univ Calif Los Angeles, Los Angeles, CA 90055 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.81.826

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a new type of spatially coherent plasma structure that is associated with quasistatic, magnetic-field-aligned electric fields in space plasmas. The solitary structures form in a magnetized plasma, are multidimensional, and are highly supersonic. The size along Bo is a few lambda(D) and increases with increasing amplitude, unlike a classical soliton. The perpendicular size appears to be influenced by ion motion. We show that the structures facilitate ion-electron momentum exchange and suggest that an aggregate of structures may play a role supporting large-scale, parallel electric fields. [S0031-9007(98)06705-2].

引用

页码：826 / 829

页数：4

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