Computer Science – Sound
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pazh...17...67b&link_type=abstract
Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 17, Jan. 1991, p. 67-74. In Russian. In Russian.
Computer Science
Sound
4
Convection, Electrostatic Waves, Solar Oscillations, Stellar Models, Adiabatic Conditions, Entropy, Nonequilibrium Thermodynamics, Sound Waves
Scientific paper
A model of the solar convective zone is constructed whose oscillatory properties are consistent with data from observations of five-minute oscillations. The model differs from the standard one in the following ways: (1) it incorporates Coulomb interaction among free charges; (2) it has lower entropy in the adiabatic part of the convective zone; and (3) it has a variable convective parameter in the outer layers of the convective zone. A considerable depth of the convective zone (h = 0.33 R) results from the Coulomb interaction. The oscillatory properties of the model are studied by means of the phase shift function of an acoustic wave reflected by the outer layers of the convective zone. This function may be determined from the measured frequencies of five-minute oscillations, and coincides with the theoretical function to within the limits of error. The model is compared with Spruit's (1974) and Christensen-Dalsgaard's (1982).
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