Transverse instability of magnetized electron holes

被引：87

作者：

Muschietti, L ^{[1
]}

Roth, I ^{[1
]}

Carlson, CW ^{[1
]}

Ergun, RE ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.85.94

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study a transverse instability of the nonlinear equilibria known as electron phase-space holes in the presence of a magnetic field. The instability is intrinsically two dimensional and is determined by the dynamics of the trapped electrons. It depends on hole amplitudes, ambient magnetic fields, and the perpendicular velocity spread. The long-standing hole stability problem in multiple dimensions can be characterized by the gyro-to-bounce frequency ratio A low ratio associated with a small perpendicular velocity spread results in a disintegration of the positive potential spikes.

引用

页码：94 / 97

页数：4

共 17 条

[11]

MOTTEZ F, COMMUNICATION

[12] Phase-space electron holes along magnetic field lines (vol 26, pg 1093, 1999) [J].

Muschietti, L ;

Ergun, RE ;

Roth, I ;

Carlson, CW .

GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (12) :1689-1689

[13] Analysis and simulation of BGK electron holes [J].

Muschietti, L ;

Roth, I ;

Ergun, RE ;

Carlson, CW .

NONLINEAR PROCESSES IN GEOPHYSICS, 1999, 6 (3-4) :211-219

[14] Phase-space electron holes along magnetic field lines [J].

Muschietti, L ;

Ergun, RE ;

Roth, I ;

Carlson, CW .

GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (08) :1093-1096

[15] Electron beam instabilities as generation mechanism of electrostatic solitary waves in the magnetotail [J].

Omura, Y ;

Matsumoto, H ;

Miyake, T ;

Kojima, H .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1996, 101 (A2) :2685-2697

[16] Evolution of electron phase-space holes in a 2D magnetized plasma [J].

Oppenheim, M ;

Newman, DL ;

Goldman, MV .

PHYSICAL REVIEW LETTERS, 1999, 83 (12) :2344-2347

[17] STABILITY OF ELECTRON VORTEX STRUCTURES IN PHASE-SPACE [J].

SCHAMEL, H .

PHYSICAL REVIEW LETTERS, 1982, 48 (07) :481-483

← 1 2 →