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| Titel |
Effects of a moving X-line in a time-dependent reconnection model |
| VerfasserIn |
S. A. Kiehas, V. S. Semenov, I. V. Kubyshkin, Yu. V. Tolstykh, T. Penz, H. K. Biernat |
| 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 ; 25, no. 1 ; Nr. 25, no. 1 (2007-02-01), S.293-302 |
| Datensatznummer |
250015778
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| Publikation (Nr.) |
 copernicus.org/angeo-25-293-2007.pdf |
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| Zusammenfassung |
| In the frame of magnetized plasmas, reconnection appears as an
essential process for the description of plasma acceleration and
changing magnetic field topology. Under the variety of
reconnection regions in our solar system, we focus our research
onto the Earth's magnetotail. Under certain conditions a Near
Earth Neutral Line (NENL) is free to evolve in the current sheet
of the magnetotail. Reconnection in this region leads to the
formation of Earth- and tailward propagating plasma bulges, which
can be detected by the Cluster or Geotail spacecraft. Observations
give rise to the assumption that the evolved reconnection line
does not provide a steady state behavior, but is propagating
towards the tail (e.g., Baker et al., 2002). Based on a
time-dependent variant of the Petschek model of magnetic
reconnection, we present a method that includes an X-line motion
and discuss the effects of such a motion. We focus our main
interest on the shock structure and the magnetic field behavior,
both for the switch-on and the switch-off phase. |
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