Phases and amplitudes of acoustic-gravity waves. I - Upward and downward solutions

Details Phases and amplitudes of acoustic-gravity waves. I - Upward and downward solutions Phases and amplitudes of acoustic-gravity waves. I - Upward and downward solutions

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...242..271m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 242, no. 1, Feb. 1991, p. 271-278.

Computer Science

Sound

26

Gravity Waves, Lamb Waves, Solar Oscillations, Sound Waves, Amplitudes, Chromosphere, Perturbation Theory, Photosphere

Scientific paper

A study is presented of the phases and amplitudes of acoustic-gravity waves in the kx-omega diagram. Waves which propagate energy both upward and downward in the solar atmosphere are considered. The wave model considers linear perturbations in a compressible medium assumed to be a perfect gas stably stratified at uniform temperature and radiatively damped. The kx-omega diagrams are also displayed for the temperature and pressure amplitudes relative to velocity. The results from the model are discussed and compared with recent observations of the phase relations between velocity and brightness oscillations.

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