Gravity and Magneto-Gravity Waves in Astrophysics

In this contribution, applications of gravity and magneto-gravity waves in various astrophysical contexts are briefly reviewed. We describe magnetohydrodynamic wave transformation process in a stellar atmosphere with a radially open magnetic field, emphasize the possibility of trapped stellar coronal magnetogravity waves, and study modulations of stellar high-frequency p-modes by low-frequency g-modes. With a sufficiently long uninterrupted high-quality helioseismological data, the last mechanism may be utilized to search for signatures of solar interior g-modes in the form of fine spectral structures of individual p-modes or to put an independent upper limit on g-mode magnitude.