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Fig. 18


Galaxy number density of the whole spectroscopic sample of A3921 (including component C). The field-of-view is subdivided into 25 × 25 equally-sized rectangles. The colour scale shows the number of galaxies per Mpc2. BCG1 and BCG2 are represented by yellow crosses. Overdense regions protruding from the cluster centre are enclosed by dashed lines.

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