| タイトル | Trapping saturation of the bump-on-tail instability and electrostatic harmonic excitation in earth's foreshock |
| 著者（英） | Klimas, Alexander J. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1990-09-01 |
| 言語 | eng |
| 内容記述 | The Vlasov simulation is used to examine the trapping saturation of the bump-on-tail instability both with and without mode-mode coupling and subsequent harmonic excitation. It is found that adding the pumped harmonic modes leads to a significant difference in the behavior of the phase-space distribution function near the unstable bump at the saturation time of the instability. The pumped modes permit rapid plateau formation on the space-averaged velocity distribution, in effect preventing the onset of the quasi-linear velocity-diffusion saturation mechanism. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 90A50417 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/353748 |
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