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Reversals of the magnetic field in one low-dimensional \(\alpha\Omega\)-dynamo model. (Russian. English summary) Zbl 1413.76057

Summary: We describe a low-mode dynamo model. This model implements the various known regimes of cosmic dynamo systems, in particular, the various regimes of reversals. The source of regular reversals in the model is its internal dynamics. The violation of this cyclicality, the transition to a chaotic regime of reversals are caused by fluctuations of the parameters, that are interpreted as the result of spontaneous coherent addition of the higher modes. The simplicity of the model allows you to easily modify it for various celestial bodies.

MSC:

76W05 Magnetohydrodynamics and electrohydrodynamics
86A25 Geo-electricity and geomagnetism
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Full Text: MNR

References:

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