Drift-kinetic Alfven waves observed near a reconnection X line in the Earth's magnetopause

被引：104

作者：

Chaston, CC ^{[1
]}

Phan, TD

Bonnell, JW

Mozer, FS

Acuna, M

Goldstein, ML

Balogh, A

Andre, M

Reme, H

Fazakerley, A

机构：

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

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[3] Univ London Imperial Coll Sci & Technol, London, England

[4] Swedish Inst Space Phys, Uppsala, Sweden

[5] CESR, Toulouse, France

[6] Mullard Space Sci Lab, Dorking, Surrey, England

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.95.065002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We identify drift-kinetic Alfven waves in the vicinity of a reconnection X line on the Earth's magnetopause. The dispersive properties of these waves have been determined using wavelet interferometric techniques applied to multipoint observations from the Cluster spacecraft. Comparison of the observed wave dispersion with that expected for drift-kinetic Alfven waves shows close agreement. The waves propagate outwards from the X line suggesting that reconnection is a kinetic Alfven wave source. Energetic O+ ions observed in these waves indicate that reconnection is a driver of auroral ion outflow.

引用

页数：4

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