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| Titel |
Electron pitch-angle diffusion: resonant scattering by waves vs. nonadiabatic effects |
| VerfasserIn |
A. V. Artemyev, K. G. Orlova, D. Mourenas, O. V. Agapitov, V. V. Krasnoselskikh |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 31, no. 9 ; Nr. 31, no. 9 (2013-09-05), S.1485-1490 |
| Datensatznummer |
250086100
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| Publikation (Nr.) |
 copernicus.org/angeo-31-1485-2013.pdf |
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| Zusammenfassung |
| In this paper we investigate the electron pitch-angle diffusion coefficients
in the night-side inner magnetosphere around the geostationary orbit (L ~ 7) due to magnetic field deformation. We compare the effects of resonant
wave–particle scattering by lower band chorus waves and the adiabaticity
violation of electron motion due to the strong curvature of field lines in
the vicinity of the equator. For a realistic magnetic field configuration,
the nonadiabatic effects are more important than the wave–particle
interactions for high energy (> 1 MeV) electrons. For smaller energy, the
scattering by waves is more effective than nonadiabatic one. Moreover, the
role of nonadiabatic effects increases with particle energy. Therefore, to
model electron scattering and transport in the night-side inner
magnetosphere, it is important to take into account the peculiarities of
high-energy electron dynamics. |
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