Finite-amplitude convection in a compressible medium and its application to supergranulation

Details Finite-amplitude convection in a compressible medium and its application to supergranulation Finite-amplitude convection in a compressible medium and its application to supergranulation

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.188..615v&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 188, Sept. 1979, p. 615-624.

Astronomy and Astrophysics

Astronomy

6

Solar Granulation, Stellar Models, Stellar Structure, Amplitudes, Boundary Value Problems, Buoyancy, Harmonics, Helium Ions, Linear Equations, Nonlinear Equations, Rayleigh Number

Scientific paper

In the present paper the techniques developed in studies of finite-amplitude convection in a compressible medium are applied to the investigation of supergranulation in the sun. Assuming that the instability is due to He(+) recombination a model is derived which indicates that convection in the upper 8000 km of the sun may occur as an overtone and not as a fundamental mode. This could be a possible explanation of the observed characteristics of supergranulation.

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