Taroyan, Y.A. and Erdelyi , R. (2007) Resonant acoustic waves in a stratied atmsophere. In: Erdelyi , R. and Mendoza-Briceno, C.A., (eds.) Waves & Oscillations in the Solar Atmosphere: Heating and Magneto-Seismology. Waves & Oscillations in the Solar Atmosphere: Heating and Magneto-Seismology: IAU Symposium 247, September 17-22, 2007, Porlamar, Isla de Margarita, Venezuela. Proceedings of the International Astronomical Union , 3 (s247). Cambridge University Press , Cambridge , pp. 86-89. ISBN 978-0-52187-4694
Abstract
The upward propagation of linear acoustic waves in a gravitationally stratified atmosphere is studied. The wave motion is governed by the Klein-Gordon equation which contains a cut-off frequency introduced by stratification. The acoustic cut-off 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 which extends into the entire unbounded atmosphere. The parameter space characterizing the resonance is explored.
Metadata
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| Institution: | The University of Sheffield |
| Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield) |
| Depositing User: | Mrs Megan Hobbs |
| Date Deposited: | 16 Mar 2010 18:06 |
| Last Modified: | 16 Nov 2015 11:48 |
| Published Version: | http://dx.doi.org/10.1017/S1743921308014713 |
| Status: | Published |
| Publisher: | Cambridge University Press |
| Series Name: | Proceedings of the International Astronomical Union |
| Identification Number: | doi:1017/S1743921308014713 |
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