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Fig. 1.


Dependence of the velocity segregation on luminosity in bins of the magnitude gap for galaxies within R200. We show with black filled squares those clusters with Δm12 ≤ 0.5, with red filled hourglasses those with 0.5 <  Δm12 ≤ 1.0, with violet filled bow ties those with 1.0 <  Δm12 ≤ 1.5, and with green filled circles those systems with Δm12 ≥ 1.5. The error bars show the uncertainties of the mean, computed as the standard deviation of the normalised velocity divided by the square root of the total number of galaxies in each absolute-magnitude bin.

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