Thin electron-scale layers at the magnetopause -: art. no. L03803

被引：59

作者：

André, M

Vaivads, A

Buchert, SC

Fazakerley, AN

Lahiff, A

机构：

[1] Swedish Inst Space Phys, SE-75121 Uppsala, Sweden

[2] UCL, Mullard Space Sci Lab, London WC1E 6BT, England

来源：

GEOPHYSICAL RESEARCH LETTERS | 2004年 / 31卷 / 03期

关键词：

D O I：

10.1029/2003GL018137

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We use data from the four Cluster satellites to examine the microphysics of a thin electron-scale layer discovered on the magnetospheric side of the magnetopause. Here the ion and electron motions are decoupled in a layer about 20 km (a few electron scales) wide, including currents and strong electric fields. In this layer the electrons are E x B drifting with the ions as a background, and the region can be described by Hall MHD physics. A unique identification of the source of the thin layer is not possible, but our observations are consistent with recent simulations showing thin layers associated with the separatrix extending far away from a reconnection diffusion region.

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页码：L038031 / 4

页数：4

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