ALFVEN SHOCK-LIKE STRVCTURE WITH A PARALLEL ELECTRIC FIELD──ACCELERATION MECHANISM OF AURORAL PARTICLE

SONG Liting; LU Xianhe; WANG Deyu

doi:10.11728/cjss1999.01.015

Volume 19 Issue 1

Jan. 1999

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Article Navigation > Chinese Journal of Space Science > 1999 > 19(1): 15-21

SONG Liting, LU Xianhe, WANG Deyu. ALFVEN SHOCK-LIKE STRVCTURE WITH A PARALLEL ELECTRIC FIELD──ACCELERATION MECHANISM OF AURORAL PARTICLE[J]. Chinese Journal of Space Science, 1999, 19(1): 15-21. doi: 10.11728/cjss1999.01.015

Citation:

SONG Liting, LU Xianhe, WANG Deyu. ALFVEN SHOCK-LIKE STRVCTURE WITH A PARALLEL ELECTRIC FIELD──ACCELERATION MECHANISM OF AURORAL PARTICLE[J]. Chinese Journal of Space Science, 1999, 19(1): 15-21. doi: 10.11728/cjss1999.01.015

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ALFVEN SHOCK-LIKE STRVCTURE WITH A PARALLEL ELECTRIC FIELD──ACCELERATION MECHANISM OF AURORAL PARTICLE

doi: 10.11728/cjss1999.01.015

1.
Department of Geophysics, Peking University, Beliing 100871
2.
Center for Space Science and Applied Research, The Chinese Academy Of Sciences
3.
Purple Mountain Observatory, The Chinese Academy of Sciences

Received Date: 1998-02-25
Rev Recd Date: 1998-10-05
Publish Date: 1999-01-24

Abstract

Abstract

As a result of dispersion and dissipation the kinetic Alfven wave nonlinearlyevolves into a shock-like structure. It carries a parallel electric field along the magnetic field, and offers a new mechanism for auroral particle acceleration. The wavemeasurement above the polar ionosphere by Freja satellite found a similar solitaryAlfven structure, which is comparable to the shock-like structure as predicted bythe theory.
- Kinetic Alfven wave,
- Parallel electric field,
- Auroral particle acceleration