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.
Helioseismology, Asteroseismology, and MHD Connections
Guest Editors: Laurent Gizon and Paul Cally.
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Taroyan, Y., Erdélyi, R. (2008). Global Acoustic Resonance in a Stratified Solar Atmosphere. In: Gizon, L., Cally, P., Leibacher, J. (eds) Helioseismology, Asteroseismology, and MHD Connections. Springer, New York, NY. https://doi.org/10.1007/978-0-387-89482-9_35
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DOI: https://doi.org/10.1007/978-0-387-89482-9_35
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