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Fig. 2

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Logarithm of normalized squared Brunt-Väisälä N2 (solid curve) and ( = 1) Lamb frequencies (dash-dotted curve) as a function of the normalized mass m/M for model M1 () (black curves) and M2 () (blue curves). The thin horizontal solid lines indicate the frequency range for expected excited oscillation modes: black for model M1 and blue for M2.

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