Table 2
Statistical results about the relative kinematics of red and blue populations.
| Sample | z range | Ncl | Ng | Ncl,F | ΔσV | ΔσV/σV | Ncl,b > r | S-test | W-test | VDP χ2-test |
| (km s-1) | Prob≠ | Prob≠ | Prob≠ | |||||||
|
|
||||||||||
| whole | 0.4 ≤ z ≤ 1.5 | 41 | 1674 | 5 (7) | 75 | 11% | 27 | 97% | 99% | >99.99% |
| low-z | 0.4 ≤ z< 0.5 | 15 | 623 | 2 (4) | 170 | 24% | 12 | 98% | 98% | 99% |
| medium-z | 0.5 ≤ z< 0.8 | 13 | 455 | 2 (2) | 148 | 14% | 9 | 87% | 93% | 98% |
| high-z | 0.8 ≤ z ≤ 1.5 | 13 | 596 | 1 (1) | 48 | 6% | 6 | 50% | 73% | 96% |
Notes. Column 1: sample name; Col. 2: the redshift range of the sample; Col. 3: the number of clusters, Ncl; Col. 4: the number of galaxies in the sample, Ng; Col. 5: the number of clusters with σV,blue>σV,red, with a 95% (90%) c.l. significant difference according to the F-test, Ncl,F; Col. 6: the difference between the median values of the σV distributions of red and blue galaxies, ΔσV; Col. 7: the same, but normalized to the median value of σV as computed using all galaxies, ΔσV/σV; Col. 8: the number of clusters with σV,blue>σV,red, Ncl,b > r; Cols. 9 and 10: the probability of difference according to the S- and W-tests; Col. 11: the probability of difference according to the χ2-test applied to the VDPs of the ensemble cluster. The results of the KS-test applied to the velocity dispersion distributions of red and blue galaxies are not listed since no evidence of significant difference is detected.
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