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Table 2

(U − V) colour intercept evolution at MV − 5 log  h = −20 as a function of redshift for a fixed slope of d(U − V)/d(MV) = −0.08.

z N gal Intercept Measured Observed Colour
scatter scatter dispersion

0.47 1292 1.23 0.032 0.077 0.143
0.56 2661 1.19 0.022 0.074 0.135
0.65 3360 1.14 0.019 0.073 0.128
0.75 2420 1.12 0.024 0.075 0.148
0.86 1583 1.09 0.027 0.076 0.161
0.95 771 1.07 0.041 0.082 0.135
1.09 250 0.95 0.066 0.097 0.100

Notes. Columns give the median redshift, number of galaxies used for the computation, intercept, measured scatter (Poissonian statistics), observed scatter (measured plus systematic scatter), and the observed colour dispersion of the CMR σ(U − V) between − 19.0 ≥ MV ≥ −23.5.

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