Azimuthal profiles of the metallicity variations (δ[Fe∕H]) at different radii (R = 5 (top panels), R = 7.5 (middle panels), and R = 10 kpc (bottom panels))for the different models. The profilesare shown at three times: t = 0.3 Gyr (left columns), t = 0.5 Gyr (middle column), and t = 1.3 Gyr (right column). The red lines represent the differential surface density (δΣ ) as a function of azimuth at the same radius. To facilitate comparison with the metallicity variations, the values of δΣ have been rescaled; see legend.
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