Direct observation of localized parallel electric fields in a space plasma

被引：144
作者：
Ergun, RE
Su, YJ
Andersson, L
Carlson, CW
McFadden, JP
Mozer, FS
Newman, DL
Goldman, MV
Strangeway, RJ
机构：
[1] Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80309 USA
[2] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
[3] Univ Colorado, Ctr Integrated Plasma Studies, Boulder, CO 80309 USA
[4] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90055 USA
[5] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 04期
关键词：
D O I：
10.1103/PhysRevLett.87.045003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report direct measurements of parallel electric fields related to particle acceleration in a collisionless space plasma. The electric field is that of a monotonic potential ramp localized to similar to 10 debye lengths along the magnetic field. Electrons accelerated by the parallel electric field are accompanied by intense electrostatic waves and nonlinear structures interpreted as electron phase-space holes.
引用
收藏
页码：45003 / 1
页数：4
相关论文
共 20 条
[1]  
Block L. P., 1972, Cosmic Electrodynamics, V3, P349
[2]   The Fast Auroral SnapshoT (FAST) mission [J].
Carlson, CW ;
Pfaff, RF ;
Watzin, JG .
GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (12) :2013-2016
[3]   FAST observations in the downward auroral current region: Energetic upgoing electron beams, parallel potential drops, and ion heating [J].
Carlson, CW ;
McFadden, JP ;
Ergun, RE ;
Temerin, M ;
Peria, W ;
Mozer, FS ;
Klumpar, DM ;
Shelley, EG ;
Peterson, WK ;
Moebius, E ;
Elphic, R ;
Strangeway, R ;
Cattell, C ;
Pfaff, R .
GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (12) :2017-2020
[4]   FAST satellite observations of electric field structures in the auroral zone [J].
Ergun, RE ;
Carlson, CW ;
McFadden, JP ;
Mozer, FS ;
Delory, GT ;
Peria, W ;
Chaston, CC ;
Temerin, M ;
Elphic, R ;
Strangeway, R ;
Pfaff, R ;
Cattell, CA ;
Klumpar, D ;
Shelley, E ;
Peterson, W ;
Moebius, E ;
Kistler, L .
GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (12) :2025-2028
[5]   Debye-scale plasma structures associated with magnetic-field-aligned electric fields [J].
Ergun, RE ;
Carlson, CW ;
McFadden, JP ;
Mozer, FS ;
Muschietti, L ;
Roth, I ;
Strangeway, RJ .
PHYSICAL REVIEW LETTERS, 1998, 81 (04) :826-829
[6]   Nonlinear two-stream instabilities as an explanation for auroral bipolar wave structures [J].
Goldman, MV ;
Oppenheim, MM ;
Newman, DL .
GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (13) :1821-1824
[7]   PARTICLE DYNAMICS AND CURRENT-FREE DOUBLE-LAYERS IN AN EXPANDING, COLLISIONLESS, 2-ELECTRON-POPULATION PLASMA [J].
HAIRAPETIAN, G ;
STENZEL, RL .
PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1991, 3 (04) :899-914
[8]   ELECTROSTATIC SHOCKS, DOUBLE-LAYERS, AND ANOMALOUS RESISTIVITY IN MAGNETOSPHERE [J].
HUDSON, MK ;
MOZER, FS .
GEOPHYSICAL RESEARCH LETTERS, 1978, 5 (02) :131-134
[9]   V-shaped dc potential structure caused by current-driven electrostatic ion-cyclotron instability [J].
Ishiguro, S ;
Sato, T ;
Takamaru, K .
PHYSICAL REVIEW LETTERS, 1997, 78 (25) :4761-4764
[10]   VLF SAUCERS [J].
JAMES, HG .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1976, 81 (04) :501-514
12