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Fig. 8


Flux-limited group properties as a function of comoving distance. Upper left panel: velocity dispersion; upper middle: group extent in the plane of the sky; upper right: virial radius; lower left: number of galaxies in the group; lower middle: sum of the observed galaxy luminosities; lower right: mass of the galaxy group. Blue and red dots show groups with fewer than five and five or more members, respectively.

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