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Fig. 1


Convective efficiency and gravity-darkening exponent in the HR diagram. The models were computed with the GRANADA code and the masses range from 0.8 up to 3.16 M. Dashed line indicates the locus of the f = 0.5 (Eq. (10)). This line roughly divides the HR diagram in envelopes with high convective efficiency (right) and low convective effciency envelopes (left). The critical log Teff at the ZAMS is around 3.9.

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