MHD waves on solar magnetic flux tubes - Tutorial reviewSome 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.
Document ID
19920048579
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Hollweg, Joseph V. (New Hampshire, University Durham, United States)