Abstract
view Abstract Citations (21) References (2) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On magnetic buoyancy in the convection zone. Unno, W. ; Ribes, E. Abstract A magnetic flux tube extending horizontally across a stratified atmosphere with gas pressure and temperature subject to uniform gravitational acceleration is considered. Compression and expansion of the tube are such that field strength is proportional to a power of the density. Turbulent viscosity capable of balancing magnetic buoyancy is defined such that the azimuthal field (100 G) can be retained long enough for the solar dynamo to be effective in the solar convection zone. A magnetic field of 200-300 G may be retained in the convective zone for a half solar cycle (about 10 years). No serious limitations seem to be imposed by magnetic buoyancy on a dynamo operating within the convective zone. Temperature perturbations complicate the problem, but do not invalidate the conclusions. Publication: The Astrophysical Journal Pub Date: August 1976 DOI: 10.1086/154597 Bibcode: 1976ApJ...208..222U Keywords: Buoyancy; Convective Flow; Dynamo Theory; Magnetic Flux; Solar Magnetic Field; Eddy Viscosity; Magnetohydrodynamic Flow; Thermodynamic Properties; Turbulent Diffusion; Solar Physics full text sources ADS |
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