Abstract
A solar model which includes the plausible presence of a mild mixing in the solar inner radiative zone is presented. The mixing is supposed to result from the hydrodynamical instabilities which may occur in a differentially rotating medium leading then to turbulent diffusion. The model includes up-to-date input physics and tales into account the inhibition of the turbulent motions, due to molecular weight gradients (i.e. for M r /M⊙ < 0.5). The properties of the model are compared to the standard model properties and to observational results: this turbulent diffusion mixing (TDM) improves the results on surface abundances of the light elements (7Li,3He) and does not reduce the solar neutrino flux relative to the standard model. Moreover preliminary results show that this TDM weakly modifies the oscillation frequencies.
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© 1988 International Astronomical Union
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Lebreton, Y., Berthomieu, G., Provost, J. (1988). A Solar Model With Turbulent Diffusion Mixing: Surface Abundances And Oscillations. In: Christensen-Dalsgaard, J., Frandsen, S. (eds) Advances in Helio- and Asteroseismology. International Astronomical Union / Union Astronomique Internationale, vol 123. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4009-3_20
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DOI: https://doi.org/10.1007/978-94-009-4009-3_20
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