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| Titel |
On resonant interactions of ions with plasma waves in a reduced quasi-linear theory |
| VerfasserIn |
E. Marsch |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 9, no. 2 ; Nr. 9, no. 2, S.69-74 |
| Datensatznummer |
250006687
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| Publikation (Nr.) |
 copernicus.org/npg-9-69-2002.pdf |
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| Zusammenfassung |
| Based on
quasi-linear theory (involving pitch angle scattering), the resonant
interactions between ions and waves in an anisotropic multi-component
plasma are discussed. In particular, electromagnetic Alfvén and
ion-cyclotron waves propagating along or obliquely to the magnetic field
are considered. A set of reduced (with respect to the perpendicular
velocity component) quasi-linear diffusion equations is derived, involving
reduced 1-D velocity distribution functions (VDFs), as they occur in wave
dispersion relations. A 2-D model VDF can be constructed when using the
Gaussian approximation. Wave-particle heating and acceleration rates are
calculated. |
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