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Fig. 1.


Normalized magnetic field model (Rp and Req denote the polar and equatorial radius, respectively; top left) and period spacing pattern for dipole zonal modes (top right) in the 3 M TAMS reference model discussed in the text. If ωA is computed using Eq. (9), ωco >  ωA is satisfied for every mode. The symbol ω denotes the corresponding angular pulsation frequency in the inertial frame. Bottom row: characteristic frequencies compared to the rotationally modified pulsation frequency ωrot/2π to assess the perturbative criterion: Coriolis frequency 2Ω/2π, Buoyancy frequency N, Lamb frequency S1, and Alfvén frequency ωA/2π estimated using the P+19 approach (Eq. (5)), our first extension (Eq. (6)), and our second extension (Eq. (9)).

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