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| Titel |
On One-Dimensional Force-Free Vlasov-Maxwell Equilibria |
| VerfasserIn |
M. G. Harrison, T. Neukirch |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250024636
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| Zusammenfassung |
| The conditions for the existence of force-free non-relativistic translationally invariant
one-dimensional (1D) Vlasov-Maxwell (VM) equilibria are investigated using general
properties of the 1D VM equilibrium problem. As has been shown before, the 1D VM
equilibrium equations are equivalent to the motion of a pseudo-particle in a conservative
pseudo-potential, with the pseudo-potential being proportional to one of the diagonal
components of the plasma pressure tensor.
Based on this theoretical framework, a necessary condition on the pseudo-potential
(plasma pressure) to allow for force-free 1D VM equilibria is formulated. It is shown that
linear force-free 1D VM solutions, which until recently were the only force-free 1D VM
solutions known, correspond to the case where the pseudo-potential is an attractive central
potential. A general class of distribution functions leading to central pseudo-potentials is
discussed. |
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