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Fig. 10.

image

Values of the surface N/H ratio normalized to the initial one as a function of the initial mass of the models, in the middle of the MS (Xc = 0.35, red) and at the end of the MS (Xc = 0.001, blue). The shaded squares correspond to the location of the observed values from Dufton et al. (2018) in this diagram.

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