Magnetoacoustic surface waves at a single interface

Details Magnetoacoustic surface waves at a single interface Magnetoacoustic surface waves at a single interface

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..133..263j&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 133, June 1991, p. 263-280.

Physics

19

Magnetoacoustic Waves, Solar Atmosphere, Solar Magnetic Field, Surface Waves, Acoustic Velocity, Magnetic Field Configurations, Plasma Density

Scientific paper

The present investigation of the case of nonparallel propagation in magnetoacoustic surface waves occurring at a single magnetic interface, one side of which is field-free, gives attention to the phase-speeds and penetration depths of the waves for various (1) Alfven speeds, (2) sound speeds, and (3) propagation angles relative to the applied field. It is found that both slow and fast magnetoacoustic surface waves can exist, depending on the values of sound speeds and propagation angle. In the case of a parallel propagation for both fast and slow magnetoacoustic surface waves on a magnetic-magnetic interface, the slow wave cannot propagate below a critical sound-speed.

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