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| Titel |
On ion-cyclotron-resonance heating of the corona and solar wind |
| VerfasserIn |
E. Marsch, C. Vocks, C.-Y. Tu |
| 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 ; 10, no. 1/2 ; Nr. 10, no. 1/2, S.101-112 |
| Datensatznummer |
250007825
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| Publikation (Nr.) |
 copernicus.org/npg-10-101-2003.pdf |
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| Zusammenfassung |
| This paper concisely
summarizes and critically reviews recent work by the authors on models of
the heating of the solar corona by resonance of ions with high-frequency
waves (up to the proton cyclotron frequency). The quasi-linear theory of
pitch angle diffusion is presented in connection with relevant solar wind
proton observations. Hybrid fluid-kinetic model equations, which include
wave-particle interactions and collisions, are derived. Numerical
solutions are discussed, representative of the inner corona and near-Sun
solar wind. A semi-kinetic model for reduced velocity distributions is
presented, yielding kinetic results for heavy ions in the solar corona. It
is concluded that a self-consistent treatment of particle distributions
and wave spectra is required, in order to adequately describe coronal
physics and to obtain agreement with observations. |
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