Resonant acoustic waves in a stratified atmosphere

Y. Taroyan; R. Erdélyi

doi:10.1017/S1743921308014713

Resonant acoustic waves in a stratified atmosphere

Y. Taroyan^*, R. Erdélyi

^*Corresponding author for this work

Department of Physics

University of Sheffield

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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.

Original language	English
Pages (from-to)	86-89
Number of pages	4
Journal	Proceedings of the International Astronomical Union
Volume	3
Issue number	S247
DOIs	https://doi.org/10.1017/S1743921308014713
Publication status	Published - Sept 2007

Keywords

Hydrodynamics
Sun: atmosphere
Sun: chromosphere
Sun: Corona
Sun: oscillations
Sun: photosphere
Waves

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1017/S1743921308014713

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title = "Resonant acoustic waves in a stratified atmosphere",

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.",

keywords = "Hydrodynamics, Sun: atmosphere, Sun: chromosphere, Sun: Corona, Sun: oscillations, Sun: photosphere, Waves",

author = "Y. Taroyan and R. Erd{\'e}lyi",

note = "Funding Information: Y.T. is grateful to the Leverhulme Trust for financial support. R.E. acknowledges M. K{\'e}ray for patient and is also grateful to NSF, Hungary (OTKA, Ref. No. K67746). Both authors thank the IAU for the travel support they have received. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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doi = "10.1017/S1743921308014713",

language = "English",

volume = "3",

pages = "86--89",

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AU - Taroyan, Y.

AU - Erdélyi, R.

N1 - Funding Information: Y.T. is grateful to the Leverhulme Trust for financial support. R.E. acknowledges M. Kéray for patient and is also grateful to NSF, Hungary (OTKA, Ref. No. K67746). Both authors thank the IAU for the travel support they have received. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2007/9

Y1 - 2007/9

N2 - 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.

AB - 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.

KW - Hydrodynamics

KW - Sun: atmosphere

KW - Sun: chromosphere

KW - Sun: Corona

KW - Sun: oscillations

KW - Sun: photosphere

KW - Waves

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DO - 10.1017/S1743921308014713

M3 - Article

AN - SCOPUS:43049119270

SN - 1743-9213

VL - 3

SP - 86

EP - 89

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - S247

ER -

Resonant acoustic waves in a stratified atmosphere

Abstract

Keywords

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