| タイトル | Stochastic acceleration of electrons in solar flares |
| 著者（英） | Smith, D. F.; Benz, A. O. |
| 著者所属（英） | Colorado Univ.|Berkeley Research Associates|Eidgenoessische Technische Hochschule |
| 発行日 | 1987-01-01 |
| 言語 | eng |
| 内容記述 | The generation of lower-hybrid waves by cross-field currents is applied to reconnection processes proposed for solar flares. Recent observations on fragmentation of energy release and acceleration, and on hard X-ray (HXR) spectra are taken into account to develop a model for electron acceleration by resonant stochastic interactions with lower-hybrid turbulence. The continuity of the velocity distribution is solved including collisions and escape from the turbulence region. It describes acceleration as a diffusion process in velocity space. The result indicates two regimes that are determined by the energy of the accelerating electrons which may explain the double power-law often observed in HXR spectra. The model further predicts an anticorrelation between HXR flux and spectral index in agreement with observations. |
| NASA分類 | SOLAR PHYSICS |
| レポートNO | 87A40395 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/377656 |
