Abstract
Evolutionary models of the present Sun with standard and artifically low opacity of stellar matter are obtained and adiabatic nonradial oscillations of the models are computed. The opacity χ in nonstandard model (which is the first in a series of future models with low χ) was taken half as much as the Cox-Stewart opacity. The central temperature in such model is approximately 10% below the ‘standard’ values, which can explain the neutrino experiment results. Unlike solar models with very low heavy element abundance, the low χ model has approximately standard mass concentration and distribution of the matter in the outer layers - specifically, the standard characteristics of the convection zone. Hence, the spectrum of adiabatic oscillations is similar to that of the standard models and has the same capabilities for the explanation of the observed pulsations.
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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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Kuzurman, P.A., Pamyatnykh, A.A. Solar models with low opacity. Sol Phys 82, 223–230 (1983). https://doi.org/10.1007/BF00145562
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DOI: https://doi.org/10.1007/BF00145562