Solar gravity modes as a test of turbulent diffusion mixing

Details Solar gravity modes as a test of turbulent diffusion mixing Solar gravity modes as a test of turbulent diffusion mixing

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.308..254b&link_type=abstract

Nature (ISSN 0028-0836), vol. 308, March 15, 1984, p. 254-257.

Physics

12

Brunt-Vaisala Frequency, Solar Gravitation, Solar Oscillations, Turbulent Diffusion, Turbulent Mixing, Flux (Rate), Modes, Neutrinos, Reynolds Number, Stellar Cores

Scientific paper

Recently detected solar global oscillations have been interpreted as internal gravity modes of degrees l = 1 and 2. The low frequency gravity modes are sensitive to solar core physical conditions, including an observed neutrino flux value that is lower than the flux predicted by the standard models. The possibility of reducing the neutrino flux has been explored through the introduction of turbulent diffusion mixing. Attention is presently given to the influence of such mixing on the periods of low degree 1 gravitey modes, which do not present the difficulties of the high degree gravity modes. These periods are found to depend on the pseudo-Reynolds number, and a value range of this parameter compatible with recent observational results is derived.

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