Fig. 15.
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[Ce/O] gradient for K2 stars with age < 1 Gyr (cyan circles). The blue dashed line represents the best fit and the blue shaded area the 68% confidence interval plus intrinsic scatter. The black line is the intercept of the MCMC simulation studied in Table 2 at the present time in the five Rg bins; the red line the GCE models at the present time at 4, 6, 8, 10, and 12 kpc.
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