'Magneto-elastic' waves in an anisotropic magnetised plasma. (14th February 2017)

• Record Type: Journal Article
• Authors: Sarto, D Del; Pegoraro, F; Tenerani, A
• Is Part Of: Plasma physics and controlled fusion. Volume 59:Number 4(2017:Apr.)
• Publication Date: 2017-02-14
• Subjects: magnetohydrodynamics -- two-fluid plasma -- plasma kinetic equations -- electromagnetic waves -- pressure tensor and pressure anisotropy; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/aa56bd
• Languages: English
• ISSNs: 0741-3335

Abstract

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.