Fig. 8.
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Same as Fig. 7, but for the correlation of fIGL with (a) the mass of the first-ranked galaxy (m1) and (b) the internal velocity dispersion of the groups (σgrp). Unlike the correlations depicted in panel a and in Figs. 6 and 7, each group in panel b is represented by three points, corresponding to three independent measurements on the Cartesian planes.
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