Parametric excitation of gyroscopic waves in Thomson-Delaney cells of the ocean of Jovian moon Europa |
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Authors: | B I Rabinovich |
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Institution: | 1.Space Research Institute,Russian Academy of Sciences,Moscow,Russia |
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Abstract: | A possible mechanism (of parametric resonance type) of excitation of planetary gyroscopic waves in Thomson-Delaney cells of
the ocean of Jovian moon Europa is considered. It is assumed that the basis of this mechanism is a variation of liquid depth
in a cell caused by tidal oscillations under the action of gravitational perturbing influence of Galilean satellites of Jupiter.
Such a model leads to a system of linear differential equations with periodic coefficients of the Hill’s type. Under some
additional assumptions it changes over into a system of independent Mathieu equations. The regions of parametric resonance
of this system are constructed. |
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Keywords: | |
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