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Fig. 4

image

Magnitude-distance diagram for the group RX J075243.6+ 455653. The distance to the BGG is shown as a function of the r-band magnitude for each galaxy within r200. The gray, black, and red points represent the spectroscopic targets, background galaxies, and group members, respectively. The horizontal and vertical full lines represent R/r200 = 0.5 and Δm12 = 2.0, respectively.

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