Solar flare proton acceleration by Alfven turbulence
| Autor: | A.L. MacKinnon |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Physics
Solar flare Astrophysics::High Energy Astrophysical Phenomena Astronomy and Astrophysics Astrophysics Solar physics Magnetohydrodynamic turbulence Corona Computational physics Nanoflares Particle acceleration Acceleration Physics::Space Physics Coronal mass ejection Astrophysics::Solar and Stellar Astrophysics Physics::Accelerator Physics |
| Zdroj: | Vistas in Astronomy. 34:331-342 |
| ISSN: | 0083-6656 |
| DOI: | 10.1016/0083-6656(91)90012-h |
| Popis: | The acceleration of solar flare γ-ray producing protons by Alfven mode turbulence is addressed. We improve on previous modelling of this process by allowing the turbulent energy density to decline as the proton energy density increases. Thus some discussion of the time-dependent behaviour of the accelerator is possible. The γ-ray line spectra, timing and absolute intensities place constraints on parameters of the accelerator. In particular, we find that the acceleration region must comprise most of the flaring corona. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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