| Abstrakt: |
Recent developments in the theory of instability by magnetic buoyancy are discussed in an astrophysical context and, where appropriate, extended to provide a more unified picture. Emphasis is placed on the effects of density stratification and rotation, which are usually stabilizing. In one strongly-stratified and rapidly-rotating parameter régime, however, it is possible to render a magnetic field configuration unstable by increasing the ‘statically-stable’ stratification, although increasing it beyond a certain limit eventually stabilizes the system, as one would intuitively expect. |
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