Author:

Keywords:

Plasma, Waves, MHD, Sun, Science & Technology, Physical Sciences, Astronomy & Astrophysics, CORONAL LOOP OSCILLATIONS, MAGNETIC-FLUX TUBES, KELVIN-HELMHOLTZ INSTABILITIES, MAGNETOHYDRODYNAMIC SURFACE-WAVES, AZIMUTHAL FOOTPOINT MOTIONS, ISOTROPIC STEADY PLASMAS, SLOW DISSIPATIVE LAYERS, FIELD LINE RESONANCES, ALFVEN WAVES, TRANSVERSE OSCILLATIONS, 0201 Astronomical and Space Sciences, 5101 Astronomical sciences, 5109 Space sciences

Abstract:

The linear theory of MHD resonant waves in inhomogeneous plasmas is reviewed. The review starts from discussing the properties of driven resonant MHD waves. The dissipative solutions in Alfvén and slow dissipative layers are presented. The important concept of connection formulae is introduced. Next, we proceed on to non-stationary resonant MHD waves. The relation between quasi-modes of ideal MHD and eigenmodes of dissipative MHD are discussed. The solution describing the wave motion in non-stationary dissipative layers is given. It is shown that the connection formulae remain valid for non-stationary resonant MHD waves. The initial-value problem for resonant MHD waves is considered. The application of theory of resonant MHD waves to solar physics is discussed.