Physics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982soph...76..239e&link_type=abstract
Solar Physics, vol. 76, Mar. 1982, p. 239-259. Research supported by the Open University.
Physics
161
Magnetohydrodynamic Waves, Plasma Slabs, Solar Atmosphere, Solar Corona, Wave Propagation, Compressibility Effects, Love Waves, Magnetoacoustic Waves, Photosphere, Propagation Modes, Propagation Velocity, Surface Waves, Wave Dispersion
Scientific paper
The propagation of waves in a magnetic slab embedded in a magnetic environment is investigated. The possible modes of propagation are examined from the general dispersion relation, both analytically and numerically, for disturbances which are evanescent in the environment. Approximate dispersion relations governing propagation in a slender slab of field are derived both from the general dispersion relation and from an application of the slender flux tube approximation. Several different situations, representative of both photospheric and coronal conditions, are considered. In general, the structures are found to support both fast and slow, body and surface, waves. Under coronal conditions, for two-dimensional propagation, disturbances propagate as fast and slow body waves. The fast body waves are analogous to the ducted shear waves of seismology (Love waves).
Edwin Patricia M.
Roberts Barney B.
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