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| Titel |
Strong localized variations of the low-altitude energetic electron fluxes in the evening sector near the plasmapause |
| VerfasserIn |
E. E. Titova, T. A. Yahnina, A. G. Yahnin, B. B. Gvozdevsky, A. A. Lyubchich, V. Y. Trakhtengerts, A. G. Demekhov, J. L. Horwitz, F. Lefeuvre, D. Lagoutte, J. Manninen, T. Turunen |
| 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 ; 16, no. 1 ; Nr. 16, no. 1, S.25-33 |
| Datensatznummer |
250013099
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| Publikation (Nr.) |
 copernicus.org/angeo-16-25-1998.pdf |
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| Zusammenfassung |
Specific type of energetic electron
precipitation accompanied by a sharp increase in trapped energetic electron flux
are found in the data obtained from low-altitude NOAA satellites. These strongly
localized variations of the trapped and precipitated energetic electron flux
have been observed in the evening sector near the plasmapause during recovery
phase of magnetic storms. Statistical characteristics of these structures as
well as the results of comparison with proton precipitation are described. We
demonstrate the spatial coincidence of localized electron precipitation with
cold plasma gradient and whistler wave intensification measured on board the
DE-1 and Aureol-3 satellites. A simultaneous localized sharp increase in both
trapped and precipitating electron flux could be a result of significant
pitch-angle isotropization of drifting electrons due to their interaction via
cyclotron instability with the region of sharp increase in background plasma
density.
Key words. Ionosphere (particle precipitation;
wave-particle interaction) Magnetospheric Physics (plasmasphere) |
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