Mean Field Dynamos with Algebraic and Dynamic alpha-Quenchings
A. Tworkowski, E. Covas, R. Tavakol, A. Brandenburg
Abstract
Calculations for mean field dynamo models (in both full spheres and spherical shells), with both algebraic and dynamic α--quenchings, show qualitative as well as quantitative differences and similarities in the dynamical behaviour of these models. We summarise and enhance recent results with extra examples. Overall, the effect of using a dynamic α appears to be complicated and is affected by the region of parameter space examined.
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