MHD waves on solar magnetic flux tubes - Tutorial review
Abstract
Some of the highly simplified models that have been developed for solar magnetic flux tubes, which are intense photospheric-level fields confined by external gas pressure but able to vary rapidly with height, are presently discussed with emphasis on the torsional Alfven mode's propagation, reflection, and non-WKB properties. The 'sausage' and 'kink' modes described by the thin flux-tube approximation are noted. Attention is also given to the surface waves and resonance absorption of X-ray-emitting loops, as well as to the results of recent work on the resonant instabilities that occur in the presence of bulk flows.
- Publication:
-
Geophysical Monograph Series
- Pub Date:
- 1990
- DOI:
- 10.1029/GM058p0023
- Bibcode:
- 1990GMS....58...23H
- Keywords:
-
- Magnetic Field Configurations;
- Magnetic Flux;
- Magnetohydrodynamic Waves;
- Solar Magnetic Field;
- Coronal Loops;
- Solar Physics;
- Surface Waves;
- Wave Propagation