Abstract
view Abstract Citations (18) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Linear Convective Modes and the Energy Transport in Stellar Convection Zones Hart, Michael H. Abstract Model stars whose convection zones had been prepared in accordance with the standard mixinglength theory were used as a basis for the computation of unstable convective modes. It was found that no superposition of statistically independent, nonviscous, adiabatic, convective modes can reproduce the radial dependence of the convective flux of the model. This implies that the representation of a stellar convection zone as a superposition of unstable adiabatic linear modes is inconsistent with the mixing-length theory, and that conclusions based upon such a representation should be regarded with caution. it is also shown that if the linear scale of convective motions is greater than (or of the same order as) the pressure scale height, then the fractional deviation of the pressure from equilibrium will generally not be negligible, as assumed in the mixing-length theory, but will be at least of the same order as the fractional deviation of the density from equilibrium. Subject headings: convection - interiors, solar - interiors, stellar Publication: The Astrophysical Journal Pub Date: September 1973 DOI: 10.1086/152352 Bibcode: 1973ApJ...184..587H full text sources ADS |
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