MHD Waves in Coronal Loops: The Effects of the Surrounding Corona
Abstract
We present the ideal magnetohydrodynamic (MHD) spectral analysis of a two-layered magnetic flux tube with model parameters which represent a typical coronal loop surrounded by the ambient corona. Alfven surface modes concentrated at the loop - corona interface are not expected to appear due to the absence of a gap between the two branches of the Alfven continuum. Fast magnetosonic modes are found, corresponding to oscillations of the order of a few seconds.
- Publication:
-
Fourth Brazilian Meeting on Plasma Physics and the Sixth Brazilian Plasma Astrophysics Workshop
- Pub Date:
- January 1996
- Bibcode:
- 1996plas.work..154O
- Keywords:
-
- Magnetohydrodynamic Waves;
- Magnetohydrodynamics;
- Magnetic Flux;
- Magnetoacoustics;
- Continuums;
- Spectrum Analysis;
- Oscillations;
- Coronas;
- Coronal Loops;
- Solar Physics