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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 |
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| Cite this article: |
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WANG De-Yu 2003 Chin. Phys. Lett. 20 533-536 |
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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.
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| Keywords:
52.35.Sb
52.35.Fp
94.30.Tz
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Published: 01 April 2003
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| PACS: |
52.35.Sb
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(Solitons; BGK modes)
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52.35.Fp
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(Electrostatic waves and oscillations (e.g., ion-acoustic waves))
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94.30.Tz
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(Electromagnetic wave propagation)
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