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Fig. 4


Distribution of early-type galaxies with z ~ 0.45. Sky coverage is incomplete, as is indicated by the shaded areas (rectangular: gaps due to telescope pointing, circular: bright stars). The dashed line indicates the CFHT field of view. The reduced number density of objects left of the CFHT field is caused by strongly varying seeing conditions which made precise colour measurements very difficult (see Sect. 2.3 for details). Empty circles mark member clusters of overdensities, their size qualitatively indicating richness.

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