Fig. 6
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Isotopic ratio 12C/13C versus [Fe/H]. The stochastic model is the colour map, with the number of simulated stars on a logarithmic scale. The dots are the observed halo stars (dwarfs in black, giants in white) as presented in Molaro et al. (2023), complete of their possible error. The horizontal line 12C/13C = 30 marks the evidence for internal mixing in giant stars (Spite et al. 2006).
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