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Radiative Transfer and Solar Oscillations*

Published online by Cambridge University Press:  12 April 2016

Jørgen Christensen-Dalsgaard  and
Philip R. Goode
Jørgen Christensen-Dalsgaard
Affiliation:
Institute d'Astrophysique, Liège, Belgium Advanced Study Program, National Center for Atmospheric Research**
Philip R. Goode
Affiliation:
High Altitude Observatory, National Center for Atmospheric Research**, Boulder, Colo., U.S.A. Astronomisk Institut†, Aarhus Universitet, DK-8000 Aarhus C, Denmark

Abstract

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We consider the atmospheric behaviour of solar oscillations in a model including a detailed, semi-empirical atmosphere. Equations of radial and non-radial oscillation, with consistent treatment of the radiation field, are derived. These equations are solved in the radial, grey case; the results show that departure from the Eddington approximation has little effect on the properties of the oscillations. Preliminary results are presented for the non-radial case, indicating substantial deviations from the Eddington approximation when the optical thickness across a horizontal wavelength is of the order of or less than unity.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 66: Problems of Solar and Stellar Oscillations , 1983 , pp. 165 - 204
Copyright
Copyright © Reidel 1983

Footnotes

**

NCAR is sponsored by the National Science Foundation.

†

Permanent address.

*

Proceedings of the 66th IAU Colloquium: Problems in Solar and Stellar Oscillations, held at the Crimean Astrophysical Observatory, U.S.S.R., 1-5 September, 1981.

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