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Fig. 20.
Intersection of a few tori with the PSS at Ω/Ωk = 0. Only the part of the PSS where kθ > 0 is shown because of the symmetry with respect to the kθ = 0 axis at zero rotation. The tori correspond to modes of degree ℓs = 1, ℓs = 9 or ℓs = 11.
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