Observations of electron vorticity in the inner plasma sheet

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Bibliographische Detailangaben
Zeitschriftentitel:	Annales Geophysicae
Personen und Körperschaften:	Gurgiolo, C., Goldstein, M. L., Viñas, A. F., Matthaeus, W. H., Fazakerley, A. N.
In:	Annales Geophysicae, 29, 2011, 9, S. 1517-1527
Format:	E-Article
Sprache:	Englisch
veröffentlicht:	Copernicus GmbH
Schlagwörter:	Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Geology Astronomy and Astrophysics

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Zusammenfassung:	<jats:p>Abstract. From a limited number of observations it appears that vorticity is a common feature in the inner plasma sheet. With the four Cluster spacecraft and the four PEACE instruments positioned in a tetrahedral configuration, for the first time it is possible to directly estimate the electron fluid vorticity in a space plasma. We show examples of electron fluid vorticity from multiple plasma sheet crossings. These include three time periods when Cluster passed through a reconnection ion diffusion region. Enhancements in vorticity are seen in association with each crossing of the ion diffusion region. </jats:p>
Umfang:	1517-1527
ISSN:	1432-0576
DOI:	10.5194/angeo-29-1517-2011