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
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
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.