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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 3:

Summary of $z_{\rm phot}$ accuracy achieved for the individual low-z and high-z clusters.
            Hyperz           GR          
Cluster (Low-z) Filters $z_{\rm cluster}$ E(B-V) $N_{\rm total}$ N(1) $\langle \Delta_z \rangle$ $\sigma_z$ $\sigma_{z,\rm MAD}$ $\sigma (\Delta z/(1+z))$ $l\%$ $g\%$ $\langle \Delta_z \rangle$ $\sigma_z$ $\sigma_{z,\rm MAD}$ $\sigma (\Delta z/(1+z))$ $l\%$ $g\%$
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18)
cl1018-1211 $BVIK_{\rm s}$ 0.473 0.0773 63 56 0.037 0.060 0.083 0.054 0.0 0.0 0.023 0.085 0.095 0.064 1.8 0.0
cl1059-1253 $BVIK_{\rm s}$ 0.456 0.0332 78 67 0.018 0.064 0.069 0.045 0.0 2.9 0.015 0.082 0.069 0.047 0.0 1.5
cl1119-1129 BVI 0.550 0.0332 57 45 0.061 0.117 0.133 0.090 11.1 0.0 0.032 0.089 0.103 0.066 11.1 0.0
cl1202-1224 ${\it BVIK}_{\rm s}$ 0.424 0.0583 59 46 -0.007 0.111 0.113 0.079 0.0 0.0 0.041 0.091 0.090 0.062 0.0 0.0
cl1232-1250 ${\it BVIJK}_{\rm s}$ 0.541 0.0596 93 77 -0.013 0.083 0.060 0.039 1.3 2.7 0.022 0.087 0.097 0.066 0.0 2.5
cl1238-1144 BVI 0.460 0.0437 11 8 -0.011 0.072 0.103 0.072 0.0 0.0 0.008 0.054 0.065 0.043 12.5 0.0
cl1301-1139 ${\it BVIK}_{\rm s}$ 0.482 0.0487 78 69 -0.012 0.062 0.058 0.039 0.0 0.0 -0.004 0.078 0.081 0.054 0.0 1.4
cl1353-1137 ${\it BVIK}_{\rm s}$ 0.588 0.0487 62 55 0.064 0.142 0.104 0.066 0.0 0.0 0.045 0.103 0.110 0.071 0.0 0.0
cl1411-1148 ${\it BVIK}_{\rm s}$ 0.520 0.0654 68 63 0.017 0.112 0.086 0.057 0.0 0.0 0.048 0.128 0.089 0.058 0.0 0.0
cl1420-1236 ${\it BVIK}_{\rm s}$ 0.496 0.0821 68 58 0.007 0.088 0.069 0.046 0.0 0.0 -0.001 0.093 0.091 0.060 0.0 0.0
Average           0.014 0.090 0.080 0.053 0.1 0.7 0.024 0.093 0.090 0.060 0.2 0.7
rms           0.025 0.027 0.019 0.013 0.4 1.2 0.019 0.015 0.011 0.007 0.6 1.0
Cluster (high-z) Filters $z_{\rm cluster}$ E(B-V) $N_{\rm total}$ N(1) $\langle \Delta_z \rangle$ $\sigma_z$ $\sigma_{z,\rm MAD}$ $\sigma (\Delta z/(1+z))$ $l\%$ $g\%$ $\langle \Delta_z \rangle$ $\sigma_z$ $\sigma_{z,\rm MAD}$ $\sigma (\Delta z/(1+z))$ $l\%$ $g\%$
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18)
cl1037-1243a ${\it VRIJK}_{\rm s}$ 0.425 0.0433 111 104 -0.016 0.114 0.107 0.075 0.0 1.0 -0.010 0.092 0.098 0.065 1.9 1.9
cl1040-1155 ${\it VRIJK}_{\rm s}$ 0.704 0.0505 116 104 0.028 0.068 0.080 0.046 0.0 1.9 0.021 0.072 0.076 0.046 0.0 1.9
cl1054-1146 ${\it VRIJK}_{\rm s}$ 0.697 0.0374 102 94 0.025 0.090 0.090 0.054 0.0 3.3 0.020 0.127 0.114 0.068 2.1 4.3
cl1054-1245 ${\it VRIJK}_{\rm s}$ 0.750 0.0378 98 77 -0.001 0.087 0.094 0.055 0.0 5.8 0.063 0.071 0.111 0.064 0.0 7.0
cl1103-1245b ${\it VRIJK}_{\rm s}$ 0.703 0.0481 98 86 0.012 0.088 0.085 0.052 2.3 4.1 -0.004 0.121 0.112 0.069 7.0 8.4
cl1122-1136 ${\it VRIJK}_{\rm s}$ 0.640 0.0404 12 7 -0.012 0.105 0.180 0.107 14.3 14.3 -0.005 0.115 0.061 0.042 0.0 0.0
cl1138-1133 ${\it VRIJK}_{\rm s}$ 0.479 0.0274 110 94 -0.002 0.088 0.088 0.056 0.0 1.1 -0.035 0.080 0.080 0.054 0.0 2.0
cl1216-1201 ${\it VRIJK}_{\rm s}$ 0.794 0.0449 116 96 0.034 0.079 0.096 0.053 1.0 7.8 0.040 0.096 0.136 0.077 0.0 7.6
cl1227-1138 ${\it VRIJK}_{\rm s}$ 0.635 0.0468 110 100 -0.030 0.115 0.087 0.054 1.0 2.0 -0.004 0.101 0.075 0.047 0.0 3.0
cl1354-1230 ${\it VRIJK}_{\rm s}$ 0.762 0.0793 104 92 -0.018 0.108 0.090 0.053 3.3 2.2 0.010 0.107 0.086 0.052 1.1 1.1
Average           0.003 0.093 0.091 0.055 0.8 3.2 0.011 0.096 0.099 0.060 1.3 4.1
rms           0.021 0.015 0.007 0.007 1.1 2.2 0.027 0.019 0.020 0.010 2.1 2.6

Notes: the information given in this table is: (1) cluster identification, (2) filter set used to compute $z_{\rm phot}$, (3) spectroscopic $z_{\rm cluster}$, (4) E(B-V) at the cluster center, (5) total number of redshifts available in the field, (6) total number of spectroscopic redshifts used for accuracy determinations, and $z_{\rm phot}$ accuracy achieved with Hyperz and GR codes: (7) (13) systematic deviation between $z_{\rm phot}$ and $z_{\rm spec}$, (8) (14) standard deviation $\sigma_z$, (9) (15) median absolute deviation ( $\sigma_{z,\rm MAD}$), (10) (16) normalized median absolute deviation ( $\sigma (\Delta z/(1+z))$), (11) (17) fraction of catastrophic identifications ($l\%$), (12) (18) fraction of spurious identifications ($g\%$). Clusters excluded in the computation of the averaged accuracy are given in italic (see text). The spectroscopic $z_{\rm cluster}$ in Col. (3) corresponds to the most prominent cluster in the field. Other clusters have been identified in cl1037 (z=0.578), cl1103 (z=0.959 and 0.626), cl1138 (z=0.455), cl1227 (z=0.583), cl1301 (z=0.397), and cl1354 (z=0.595) (see Milvang-Jensen et al. 2008, for details).


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