magnetoacoustic perturbation
1Coronal seismology — is a technique of studying the plasma of the Sun s corona with the use of magnetohydrodynamic (MHD) waves and oscillations. Magnetohydrodynamics studies the dynamics of electrically conducting fluids in this case the fluid is the coronal plasma.… …
2Magnetosonic wave — A magnetosonic wave (also magnetoacoustic wave) is a longitudinal wave[1] of ions (and electrons) in a magnetized plasma propagating perpendicular to the stationary magnetic field. The wave is dispersionless with a phase velocity ω/k given by ,… …
