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| Titel |
Magnetic reconnection associated fluctuations in the deep magnetotail: ARTEMIS results |
| VerfasserIn |
Z. Vörös |
| 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 ; 18, no. 6 ; Nr. 18, no. 6 (2011-11-24), S.861-869 |
| Datensatznummer |
250013999
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| Publikation (Nr.) |
 copernicus.org/npg-18-861-2011.pdf |
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| Zusammenfassung |
| On the basis of ARTEMIS two-probe mission magnetic reconnection (MR) outflow
associated magnetic fluctuations and turbulence are analyzed on
19 February 2011. In the deep-tail, at distances between X = 45 – 51 RE, evidence
for reconnection associated plasma sheet thinning was found,
accompanied by heating of the plasma sheet. Correlated flow and field
reversals and the large-scale Hall-effect signatures indicated the presence
of the reconnection X-line. Within fast reconnection plasma outflows,
magnetic fluctuations exhibit the same spectral scaling features and kinked
spectra as magnetic fluctuations in the solar wind or in various parts of
geospace. It was shown that the proton scale magnetic fluctuations are
constrained by oblique firehose, proton cyclotron and mirror instability
thresholds. For parallel plasma β|| > 1, where the thresholds
converge, perpendicular magnetic fluctuations are enhanced. Magnetic
compressibility decreases with the distance to the neutral sheet, however,
near the instability thresholds it is comparable to the values obtained in
the solar wind. |
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