Paul S. Cally, Thomas J. Bogdan
Published 2024-08-02Version 1
The basic equations, concepts, and modes of linear, ideal, MHD waves -- slow, Alfv\'en and fast -- are set out and generalised to gravitationally-stratified atmospheres. Particular attention is devoted to mode conversion, wherein the local behavior of a global wave changes from one mode to another in passing through particular atmospheric layers. Exact solutions are explored where available. Eikonal methods -- WKBJ and ray theory -- are described. Although our emphasis is on the theoretical underpinning of the subject, the solar atmospheric heating implications of fast/slow and fast/Alfv\'en conversions are discussed in detail.
Comments: https://www.sciencedirect.com/book/9780323956642/magnetohydrodynamic-processes-in-solar-plasmas
Journal: Chapter 4 in "Magnetohydrodynamic Processes in Solar Plasmas", ed. A.K. Srivastava, M. Goossens and I. Arregui, Elsevier (2024), pp. 99-153. https://www.sciencedirect.com/book/9780323956642/magnetohydrodynamic-processes-in-solar-plasmas
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