Fig. 3
Left: comparison between spectroscopic redshifts (CFHT+SDSS) and photometric redshifts from the SDSS DR7 (R < 21). Dashed line represents the spectroscopic range used to select cluster members [0.125−0.155]. Dotted lines show the photometric range chosen to define cluster membership [0.09, 0.165]. Right: photometric redshifts histogram of the spectroscopically confirmed cluster members (0.125 < z < 0.155) with magnitude R < 21. Dotted line show the photometric range defining cluster membership [0.09, 0.165].
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