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Fig. 5.


Dependence of the ratio of the Lorentz forcing relative to the hydrodynamic forcing with respect to the mass of the host star for the selected star-planet systems (see Table B.1). The magnetic forcing term fmag is estimated with the magnetostrophic balance at the base and the top of the CZ and a stellar model evolved with a slow initial rotation. The tidal frequency has been calculated with the pair (m, n) that minimises and thus maximises fmag/fhydro.

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