Observations of double layers in earth's plasma sheet.
Observations of double layers in earth's plasma sheet.
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DOI：
10.1103/physrevlett.102.155002
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发表时间：
2009-04
影响因子：
8.6
通讯作者：
R. Ergun;L. Andersson;J. Tao;V. Angelopoulos;J. Bonnell;J. Mcfadden;D. Larson;S. Eriksson;T. Johansson;C. Cully;D. Newman;M. Goldman;A. Roux;O. Lecontel;K. Glassmeier;Wolfgang Baumjohann
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文献类型：
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作者：
R. Ergun;L. Andersson;J. Tao;V. Angelopoulos;J. Bonnell;J. Mcfadden;D. Larson;S. Eriksson;T. Johansson;C. Cully;D. Newman;M. Goldman;A. Roux;O. Lecontel;K. Glassmeier;Wolfgang Baumjohann
本文首次报道了地球磁层等离子体片中双电层所携带的平行电场的直接观测结果。由THEMIS卫星进行的DL观测具有类似于极光区的E_{ parallel}信号。在突发性的整体流动事件，在电流片，并在等离子体片边界层，所有期间的强磁场波动期间观察到的DL。这些观测结果意味着DL是一个普遍的过程，强烈的非线性和动力学行为是地球等离子体片固有的。
We report the first direct observations of parallel electric fields (E_{ parallel}) carried by double layers (DLs) in the plasma sheet of Earth's magnetosphere. The DL observations, made by the THEMIS spacecraft, have E_{ parallel} 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.