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arXiv · 1509.04938

"Magneto-elastic" waves in an anisotropic magnetised plasma

Daniele Del Sarto·Francesco Pegoraro·Anna Tenerani
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Abstract

The linear waves that propagate in a two fluid magnetised plasma allowing for a non-gyrotropic perturbed ion pressure tensor are investigated. For perpendicular propagation and perturbed fluid velocity a low frequency (magnetosonic) and a high frequency (ion Bernstein) branch are identified and discussed. For both branches a comparison is made with the results of a truncated Vlasov treatment. For the low frequency branch we show that a consistent expansion procedure allows us to recover the correct expression of the Finite Larmor Radius corrections to the magnetosonic dispersion relation.

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Daniele Del Sarto, Francesco Pegoraro, Anna Tenerani. 2015-09-16. "Magneto-elastic" waves in an anisotropic magnetised plasma. https://doi.org/10.1088/1361-6587%2Faa56bd

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