Nonlinear Phenomena in Microphysics of Collisionless Plasmas. Application to Space and Laboratory Plasmas
J. Phys. IV France 05 (1995) C6-109-C6-117
The Frequency Drift of the Envelope Solitary Waves Near ωcH+ in Observations of FrejaH. Guang-Li1, 2, D. Le Quéau1, 3 and De-Yu Wang1
1 Purple Mountain Observatory, Nanjing 210008, P.R. China
2 Postdoctoral Fellow at Centre d'étude des Environnements Terrestre et Planétaire 78140 Vélizy, France
3 Centre d'Etude des Environnements Terrestres et Planétaires, 78140 Vélizy, France
In this paper, the ion cyclotron envelope solitary waves with a "cigar" shape observed by Freja satellite are reported and studied, especially, the drift of the frequency of the waves is contributed to the non-linear effects on the resonance frequency, which predicts that the frequency drift is directly proportional to the squaire of the amplitude of the oscillations. This result is comparable with the observations of the Freja satellite.
© EDP Sciences 1995