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Fig. 7

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Spectroscopic versus photometric redshifts for the NGC 6034 group (top), the 1RXS J235814.4+150524 fossil group (middle), and the RX J1119.7+2126 fossil group (bottom). Red dots are early-type galaxies, while blue dots are spiral galaxies (see text). The inclined lines show the perfect relation and its  ± 0.125 1σ uncertainty. We also show the region chosen as the “structure” redshift range.

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