Abstract

The review presents the study of long period (longer than a few seconds) wave and oscillation phenomena in the corona of the Sun in radio, VL, EUV and X-ray bands, interpreted in terms of MHD theory. This study provides us with the observational foundation for the remote diagnostics of solar and stellar coronae with MHD waves. Kink and sausage magnetoacoustic modes and longitudinal (or acoustic) modes of coronal loops have already been confidently identified in the data. At present, the main research emphasis is put on the determination of parametric relations in the wave and oscillatory phenomena, the study of multi-modal events, and on the identification of MHD modes in quasi-periodic pulsations of solar and stellar flares.

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