Physics
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983soph...82..165c&link_type=abstract
(International Astronomical Union and Akademiia Nauk SSSR, Colloquium on Problems of Solar and Stellar Oscillations, 66th, Nauch
Physics
88
Radiative Transfer, Solar Atmosphere, Solar Oscillations, Atmospheric Models, Eddington Approximation, Energy Transfer, Optical Thickness, Plasma Interactions, Thermodynamic Equilibrium
Scientific paper
The authors 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.
Christensen-Dalsgaard Joergen
Frandsen Soeren
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