The observed rotation curves of rotationally supported dEs (grey symbols) compared to the mean rotation curves of late-type spiral galaxies (black solid and blue dashed lines) from Catinella et al. (2006). Blue filled dots represent the median observed rotation curve of rotationally supported dE in bins of r/Ropt = 0.1. The last bin contains all data for r/Ropt ≥ 0.5. The grey area indicates rotation velocities within 1σ from the median.
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