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An analytical solution of finite-amplitude solitary kinetic Alfven waves
De-Jin Wu ; De-Yu Wang ; Falthammar, C.-G.
1995
Source PublicationPhysics of Plasmas
Volume2Issue:12Pages:4476-4481
AbstractAn analytical solution of finite-amplitude solitary kinetic Alfven waves (SKAWs) in a low-beta (betaLtm e/m iLt1) plasma is presented. This solution has been compared with the solution of the Korteweg-de Vries (KdV) equation in the small-amplitude limit. It is found that the KdV soliton solution is valid only for the maximum relative density perturbation N m<0.1. For the larger N m, the exact analytical solution shows that the SKAWs have a much wider structure and much stronger perturbed fields than the KdV solitons with the same N m. Moreover, the relations between the width and the amplitude of SKAWs are also considerably different from that of the KdV solitons. In addition, the possibility for applying these results to some events observed from the Freja scientific satellite is discussed. (The Freja is a Swedish-German scientific project for the investigation of ionospheric and magnetospheric plasmas, and the Freja satellite was launched on a Chinese Long-March II rocket on October 6, 1992.)
Subject Area天文和天体物理
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8479
Collection期刊(老文献)
Recommended Citation
GB/T 7714
De-Jin Wu,De-Yu Wang,Falthammar, C.-G.. An analytical solution of finite-amplitude solitary kinetic Alfven waves[J]. Physics of Plasmas,1995,2(12):4476-4481.
APA De-Jin Wu,De-Yu Wang,&Falthammar, C.-G..(1995).An analytical solution of finite-amplitude solitary kinetic Alfven waves.Physics of Plasmas,2(12),4476-4481.
MLA De-Jin Wu,et al."An analytical solution of finite-amplitude solitary kinetic Alfven waves".Physics of Plasmas 2.12(1995):4476-4481.
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