On the Interaction between Convection and Magnetic Fields
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Open Access
- 10 May 2003
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 588 (2) , 1183-1198
- https://doi.org/10.1086/374313
Abstract
Turbulent convection in the solar photosphere can act as a small-scale dynamo, maintaining a disordered magnetic field that is locally intense. On the other hand, convection is inhibited in the presence of a strong, externally imposed magnetic field, as for instance, in a sunspot. Large-scale, three-dimensional, numerical experiments on highly nonlinear magnetoconvection in a Boussinesq fluid show that there is a continuous transition from a dynamo regime through a convective regime to an oscillatory regime as the strength of the imposed magnetic field is progressively increased. The patterns found in these different regimes are described and analyzed.Keywords
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