Global Acoustic Resonance in a Stratified Solar Atmosphere |
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Authors: | Y. Taroyan R. Erdélyi |
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Affiliation: | 1. SP2RC, Department of Applied Mathematics, University of Sheffield, Sheffield, S3 7RH, UK
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Abstract: | The upward propagation of linear acoustic waves in a gravitationally stratified solar atmosphere is studied. The wave motion is governed by the Klein?–?Gordon equation, which contains a cutoff frequency introduced by stratification. The acoustic cutoff may act as a potential barrier when the temperature decreases with height. It is shown that waves trapped below the barrier could be subject to a resonance that extends into the entire unbounded atmosphere of the Sun. The parameter space characterizing the resonance is explored. |
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