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Home All issues Volume 508 / No 3 (December IV 2009) A&A, 508 3 (2009) 1173-1191 Full HTML
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Table 5:

Comparison between spectroscopic ( $z_{\rm cl}$) and photometric determinations of cluster redshifts in the low and high-z samples.
Cluster (low-z) $z_{\rm cl}$ $z_{\rm phot}$  $z_{\rm cl}$ - $z_{\rm phot}$ $z_{\rm phot}$  $z_{\rm cl}$ $-z_{\rm phot}$
    (1) (1) (2) (2)
Cl1018-1211 0.473 0.575 -0.102 0.525 -0.052
Cl1059-1253 0.456 0.465 -0.009 0.478 -0.022
Cl1119-11291 0.550 0.544 0.006 0.475 0.075
Cl1202-1224 0.424 0.556 -0.132 0.568 -0.144
Cl1232-1250 0.541 0.614 -0.073 0.575 -0.034
Cl1238-11441 0.460 0.548 -0.088 0.521 -0.061
Cl1301-1139 0.482 0.525 -0.043 0.524 -0.042
Cl1353-1137 0.588 0.579 0.009 0.573 0.015
Cl1411-1148 0.520 0.520 0.000 0.568 -0.048
Cl1420-1236 0.496 0.570 -0.074 0.569 -0.073
$\langle \Delta_z \rangle$     -0.053   -0.050
      $\pm $0.050   $\pm $0.046
$\langle\vert\Delta_z\vert\rangle$     0.055   0.053
      $\pm $0.048   $\pm $0.041
Median $\Delta_z$     -0.058   -0.045
Cluster (high-z) $z_{\rm cl}$ $z_{\rm phot}$  $z_{\rm cl}$ - $z_{\rm phot}$ $z_{\rm phot}$  $z_{\rm cl}$ - $z_{\rm phot}$
    (1) (1) (2) (2)
Cl1037-1243a1 0.425 0.461 -0.036 0.424 0.001
Cl1040-1155 0.704 0.635 0.069 0.624 0.080
Cl1054-1146 0.697 0.658 0.039 0.673 0.024
Cl1054-1245 0.750 0.697 0.053 0.727 0.023
Cl1103-1245b 0.703 0.685 0.018 0.725 -0.022
Cl1122-11361 0.640 0.748 -0.108 0.773 -0.133
Cl1138-11331 0.479 0.686 -0.207 0.720 -0.241
Cl1216-1201 0.794 0.747 0.047 0.725 0.069
Cl1227-1138 0.635 0.664 -0.029 0.625 0.010
Cl1354-1230 0.762 0.759 0.003 0.724 0.038
$\langle \Delta_z \rangle$     0.028   0.031
      $\pm $0.033   $\pm $0.035
$\langle\vert\Delta_z\vert\rangle$     0.037   0.038
      $\pm $0.022   $\pm $0.026
Median $\Delta_z$     0.039   0.024

Notes: two estimates for the photometric determination are provided: (1) mean weighted value; and (2) the redshift corresponding to the maximum of the N(z) distribution. Clusters labeled with 1 were excluded when computing the systematic deviation and dispersion (see text).


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