Fig. 7

Brunt-Väisälä frequency for Model 4 (black solid), Model 8 (red dashed), Model 10 (grey solid) and Model 11 (blue dotted) from Table 3 and Table 4. The inset is a zoom-in around the peak in the profile induced by the gradient of the mean molecular weight outside the convective core. These four models have different masses of the convective core Mcc.
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