Observations of Double Layers in Earth's Plasma Sheet

被引：85

作者：

Ergun, R. E. ^{[1
,2
]}

Andersson, L. ^{[2
]}

Tao, J. ^{[1
,2
]}

Angelopoulos, V. ^{[3
]}

Bonnell, J. ^{[4
]}

McFadden, J. P. ^{[4
]}

Larson, D. E. ^{[4
]}

Eriksson, S. ^{[2
]}

Johansson, T. ^{[2
]}

Cully, C. M. ^{[5
]}

Newman, D. N. ^{[6
]}

Goldman, M. V. ^{[6
]}

Roux, A. ^{[7
]}

LeContel, O. ^{[7
]}

Glassmeier, K. -H. ^{[8
]}

Baumjohann, W. ^{[9
]}

机构：

[1] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA

[2] Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80309 USA

[3] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90055 USA

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

[5] Swedish Inst Space Phys, Uppsala, Sweden

[6] Univ Colorado, Ctr Integrated Plasma Studies, Boulder, CO 80309 USA

[7] Ctr Etud Environm Terrestre & Planetaires, Velizy Villacoublay, France

[8] TUBS, D-38106 Braunschweig, Germany

[9] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 15期

关键词：

PARALLEL ELECTRIC-FIELDS; CURRENT REGION; THEMIS; MAGNETOSPHERE; INSTRUMENT; AURORA; JETS;

D O I：

10.1103/PhysRevLett.102.155002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first direct observations of parallel electric fields (E(parallel to)) carried by double layers (DLs) in the plasma sheet of Earth's magnetosphere. The DL observations, made by the THEMIS spacecraft, have E(parallel to) signals that are analogous to those reported in the auroral region. DLs are observed during bursty bulk flow events, in the current sheet, and in plasma sheet boundary layer, all during periods of strong magnetic fluctuations. These observations imply that DLs are a universal process and that strongly nonlinear and kinetic behavior is intrinsic to Earth's plasma sheet.

引用

页数：5

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