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Table 1

General properties of the clusters and data sets.

Cluster RA Dec z Texp (min) m Nspectra Nz
(J2000) (J2000) B V R I (mag)

RXC J0225.9-4154 02:25:54.6 –41:54:35.3 0.2195 90 30 60 60 18.3 964 539
RXC J0528.9-3927 05:28:52.8 –39:28:17.7 0.2839 150 90 110 18.9 1114 628
RXC J2308.3-0211 23:08:22.2 –02:11:27.5 0.2966 50 45 45 18.9 1319 733

Notes. Columns: (1) Cluster name. (2)–(3) Equatorial coordinates of the X-ray peak. (4) Redshift, prior to our new estimates. (5)–(8) WFI exposure times in the B, V, R, and I bands. (9) R-band magnitude m, estimated from Zenteno et al. (2011). (10)–(11) Number of spectra and reliable redshifts obtained from the VIMOS observations.

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