Electron-Acoustic Compressive Soliton and Electron Density Hole in Aurora
WANG De-Yu
Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008
National Astronomical Observatories, Beijing 100012
Electron-Acoustic Compressive Soliton and Electron Density Hole in Aurora
WANG De-Yu
Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008
National Astronomical Observatories, Beijing 100012
关键词 ：
52.35.Sb ,
52.35.Fp ,
94.30.Tz
Abstract ： Electron-acoustic solitary waves have been studied in an electron-beam plasma system. It is found that the solution of compressive soliton only exists within a limited range of soliton velocity around the electron beam velocity. A compressive electron-acoustic soliton always accompanies with a cold electron density hole. This theoretical model is used to explain the‘fast solitary wave’event observed by the FAST satellite in the mid-altitude auroral zone.
Key words ：
52.35.Sb
52.35.Fp
94.30.Tz
出版日期: 2003-04-01
:
52.35.Sb
(Solitons; BGK modes)
52.35.Fp
(Electrostatic waves and oscillations (e.g., ion-acoustic waves))
94.30.Tz
(Electromagnetic wave propagation)
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2003, Vol. 20 
