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This is a Quantitative Study study.

October 3, 2025Open Access

Mathematical Aspects of Geophysical and Astrophysical Fluid Dynamics: Magnetic buoyancy instability in galaxies

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The study shows that rotation changes the nonlinear development of magnetic buoyancy instability in gas layers, leading to oscillatory behavior.
Data indicate that when a magnetic field is maintained by the α-effect, systems behave very differently compared to those with an imposed field.
Numerical solutions of non-ideal isothermal MHD equations illustrate that assumptions in analytical studies of the Parker instability are not supported.
Results indicate the presence of a secondary α-effect resulting in a change in magnetic field parity, distinct from initial gas layer dynamics.

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Numerical analysis reveals distinct behaviors of magnetic buoyancy instability in rotating and non-rotating systems, indicating new dynamics.

Qazi et al. (2025) studied this question.

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Numerical analysis reveals distinct behaviors of magnetic buoyancy instability in rotating and non-rotating systems, indicating new dynamics.