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Fig. 2

image

Variations within the convective envelope of gravity, pressure scale height, convective velocity, and turnover time (from top to bottom) for the 2 M, Z standard model. The abscissa is the scaled mass coordinate δMconv (δMconv = 0 and 1 respectively at the base and at the top of the convective envelope). The colors correspond to evolution points selected in Fig. 1 (see there for the corresponding values of the envelope thickness). PMS, RGB, and advanced phases are shown on the left, middle, and right panels, respectively. The corresponding colored symbols indicate the location of Hp/2 above the base of the convective envelope (for the full convective model on the PMS – green line – this point would be located outside the star, at a radius of ~ 26 R).

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