Arbitrary Amplitude Magneto-Acoustic Waves under Gravity: An Exact Solution.
Rept. for Jun-Dec 70,
AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS
Pagination or Media Count:
The author obtains exact Riemannian wave solution to the magnetohydrodynamic equations for a compressible medium under the influence of a gravitational field. The method of solution consists of an application of Hamburgers subsidiary equations previously found useful in the analysis of such three-dimensional waves in compressible hydrodynamics under gravity. The resultant magneto-acoustic waves cannot be classified as slow and fast modes, and their propagation characteristics are found to be quite different from those in a uniform medium. In particular, the phenomenon of large amplitude wave ducting is examined. Certain wave properties correspond exceedingly well with the observed fine structure of waves propagating away from solar flares. Author
- Plasma Physics and Magnetohydrodynamics