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Horizontal shear instabilities in rotating stellar radiation zones

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Figure

Fig. 1. Panels a and b: horizontal shear flow U(y) on a local polar plane rotating with angular speed Ω in the radiative zone of a rotating star
Fig. 2. Eigenvalue spectra at (a) (k x , k z ) = (0.445, 0) and (b) (k x , k z ) = (0, 5) for f = 0.5, N = 1, and Pe = 0.1
Fig. 3. Panel a: contours of the maximum growth rate σ max in the parameter space of (k x , k z ) for f = 0.5, N = 1, Pe = 0.1
Fig. 5. Turning growth rates σ ± (y) for f = 0.5 (black solid lines) and an example of the growth rate σ = 0.348 at (k x , k z ) = (0, 5) for N = 1 and Pe = ∞ (dashed line)
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