Ratio of stellar rotation over dispersion as a function of galaxy stellar mass for different redshifts (colours) as indicated in the panels. The kinematics are measured within Reff (top) or 2Reff (bottom). The solid lines indicate the average and the dashed lines are the error around the mean, with individual points shown at z = 0.25 only (purple plus signs) to appreciate the scatter of the distribution. Galaxies show an increase support of stellar rotation over dispersion with time and galaxy mass (except for z = 4) with stars outside Reff having more rotation than inside.
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