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| Titel |
Ion resonance acceleration by dipolarization fronts: analytic theory and spacecraft observation |
| VerfasserIn |
A. V. Artemyev, V. N. Lutsenko, A. A. Petrukovich |
| 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 ; 30, no. 2 ; Nr. 30, no. 2 (2012-02-07), S.317-324 |
| Datensatznummer |
250017181
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| Publikation (Nr.) |
 copernicus.org/angeo-30-317-2012.pdf |
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| Zusammenfassung |
| In this paper, we consider the mechanism of ion acceleration by
dipolarization fronts in the Earth's magnetotail. The statistics of
dipolarization front observations by Interball-tail have been collected from
1995 to 1998 (51 events). We demonstrate that near dipolarization fronts
bursts of energetic ions are often observed with an average energy of about
100–200 keV. We develop the analytical model of the ion resonance
interaction with dipolarization fronts to describe the observed acceleration.
We compare the model and the observations to estimate the width of fronts
along the dawn-dusk direction, Ry. The mean value is ⟨ Ry ⟩
~6 RE. |
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