Abstract
A model magneto-atmosphere is used to discuss the behavior of the group velocity for magnetoacoustic-gravity (MAG) waves as a function of their angular frequency. The qualitative frequency/time history of a signal generated by a source differs significantly from the case where the magnetic field is zero, for which a clear distinction may be made between the acoustic and gravity components of the signal.
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McKaig, I., Adam, J.A. Propagation of magnetoacoustic-gravity waves in a horizontally-stratified medium: IV. kinematics. Astrophys Space Sci 202, 259–271 (1993). https://doi.org/10.1007/BF00626881
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DOI: https://doi.org/10.1007/BF00626881