Global Acoustic Resonance in a Stratified Solar Atmosphere

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 tempera...

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Bibliographic Details
Published inSolar physics Vol. 251; no. 1-2; pp. 523 - 531
Main Authors Taroyan, Y., Erdélyi, R.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.09.2008
Springer Nature B.V
Subjects
Acoustics
Asteroseismology
Astrophysics and Astroparticles
Atmosphere
Atmospheric Sciences
Cosmology
Helioseismology
Mhd Connections
Physics
Physics and Astronomy
Resonance
Solar physics
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Chromosphere: Models
Heating: Chromospheric
Waves: Acoustic
Oscillations: Solar
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Summary: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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ISSN:0038-0938
1573-093X
DOI:10.1007/s11207-008-9154-3