Solar evolution with anisotropic mixing length theory

Details Solar evolution with anisotropic mixing length theory Solar evolution with anisotropic mixing length theory

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...260..255k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 260, no. 1-2, p. 255-260.

Astronomy and Astrophysics

Astrophysics

3

Lithium, Mixing Length Flow Theory, Solar Flux, Solar Neutrinos, Stellar Evolution, Anisotropic Fluids, Magnetohydrodynamic Turbulence, Stellar Models

Scientific paper

The evolutionary sequences of solar models have been constructed in which mixing length parameter alpha varies in the outer convective region during the evolution. The calculations were performed by using the anisotropic mixing length theory of Canuto (1990). In the case of weak turbulence the correct luminosity and radius values for the present sun were obtained for an alpha(chi) value equal to 0.6. The total neutrino flux was found as 3.65 SNU. While the depletion of 6Li was complete, 7Li was not depleted in significant amount in the sun. It is possible to obtain sufficient 7Li depletion with alpha(chi) values larger than 1.5. In the evolutionary models with strong turbulence, lithium depletion was found not more significant than that obtained from the weak turbulence models.

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