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| Titel |
The pressure tensor in tangential equilibria |
| VerfasserIn |
F. Mottez |
| 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 ; 22, no. 8 ; Nr. 22, no. 8 (2004-09-07), S.3033-3037 |
| Datensatznummer |
250014984
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| Publikation (Nr.) |
 copernicus.org/angeo-22-3033-2004.pdf |
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| Zusammenfassung |
| The tangential equilibria are characterized by a bulk plasma velocity
and a magnetic field that are perpendicular to the gradient direction.
Such equilibria can be spatially periodic (like waves), or they can separate
two regions with asymptotic uniform conditions (like MHD tangential discontinuities).
It is possible to compute the velocity moments
of the particle distribution function. Even in very simple cases,
the pressure tensor is not isotropic and not gyrotropic.
The differences between a scalar pressure and the pressure tensor derived in
the frame of the Maxwell-Vlasov theory are significant when the gradient
scales are of the order of the Larmor radius; they
concern mainly the ion pressure tensor. |
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