Fig. 3
Top: comparison of various properties of our model, expressed as the ratio of a given quantity in the case of radial migration to the same quantity when stars do not migrate. From top to bottom, left: star surface density, gas surface density, gas fraction, O/H profile; right: SFR surface density, SNIa rate, ratio of SNIa/CCSN, Fe/H profile. In all panels, thick curves represent results at 12 Gyr and thin curves at 8 and 4 Gyr, respectively (as in Fig. 1).
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