Energy release in solar flares
| Autor: | J. Jakimiec |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Physics
Atmospheric Science Solar flare Turbulence Astrophysics::High Energy Astrophysical Phenomena Phase (waves) Aerospace Engineering Astronomy and Astrophysics Electron Astrophysics Plasma law.invention Acceleration Geophysics Space and Planetary Science Cascade law Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics General Earth and Planetary Sciences Flare |
| Zdroj: | Advances in Space Research. 30:577-582 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/s0273-1177(02)00333-2 |
| Popis: | One of the basic features of solar flares is the very fast heating of large plasma volumes. A significant fraction of the hot flare plasma is contained in X-ray kernels which are situated near the tops of flaring loops (loop-top flare kernels). In the present paper it is argued that in the flare kernels a chain (cascade) of violent reconnections develops, as a result of which the kernels are filled with many transient reconnection sites, so that the flare energy release occurs over a large plasma volume. Formation of the kernels is briefly discussed. It is suggested how such turbulent model of the flare energy release can also explain basic features of the flare impulsive phase, i.e. acceleration of a large number of electrons in very short time. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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