Fig. 8.

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Average ratio between the galaxy velocity dispersion and the galaxy radial velocity, as a function of cluster-centric radius. The blue, orange, green, and red solid curves show the ratio at four redshifts z = 0.01, 0.31, 0.62, and 1.04, respectively. The dashed curves show the smoothed correspondingly colored solid curves. The horizontal dash-dotted line shows σv/vrad = −1. The vertical dotted lines show Rσv corresponding to σv(r)/vrad(r) = − 1 from smoothed profiles.
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