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Table 2

GMM outputs for the colour distributions of the galaxies.

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12)
Galaxy Nb Nr μ μb μr σ σb σb P(GMM) P(DD) P(kurt)
n3377(g−z) 24.7  ±  4.7 49.3  ±  4.70 1.130  ±  0.021 0.899  ±  0.018 1.247  ±  0.016 0.183  ±  0.011 0.065  ±  0.013 0.090  ±  0.011  <0.001 0.055 0.001
n3377(g−k) 27.1  ±  16.7 46.9  ±  16.7 3.194  ±  0.054 2.798  ±  0.226 3.455  ±  0.291 0.456  ±  0.042 0.236  ±  0.119 0.349  ±  0.118 0.474 0.763 0.643
n3377(z−k) 29.2  ±  19.4 44.8  ±  19.4 2.063  ±  0.042 1.805  ±  0.367 2.155  ±  0.209 0.340  ±  0.037 0.286  ±  0.175 0.270  ±  0.123 0.371 0.966 0.966
n4278(g−z) 40.4  ±  16.8 25.6  ±  16.8 1.085  ±  0.020 0.981  ±  0.085 1.265  ±  0.101 0.178  ±  0.014 0.113  ±  0.039 0.115  ±  0.051 0.653 0.530 0.38
n4278(g−k) 30.3  ±  20.7 35.7  ±  20.7 3.101  ±  0.051 2.801  ±  0.344 3.320  ±  0.283 0.425  ±  0.038 0.287  ±  0.148 0.308  ±  0.135 0.601 0.952 0.666
n4278(z−k) 20.0  ±  16.6 46.0  ±  16.6 2.016  ±  0.039 1.645  ±  0.312 2.105  ±  0.117 0.308  ±  0.030 0.214  ±  0.147 0.208  ±  0.074 0.318 0.857 0.878
n4365(g−z) 24.4  ±  19.1 73.6  ±  19.1 1.183  ±  0.020 0.965  ±  0.065 1.264  ±  0.105 0.185  ±  0.013 0.063  ±  0.034 0.152  ±  0.034 0.086 0.503 0.731
n4365(g−k) 18.8  ±  14.3 79.2  ±  14.3 3.129  ±  0.045 2.466  ±  0.232 3.256  ±  0.089 0.417  ±  0.032 0.190  ±  0.124 0.299  ±  0.045 0.022 0.120 0.553
n4365(z−k) 48.6  ±  17.2 49.4  ±  17.2 1.945  ±  0.034 1.861  ±  0.157 2.059  ±  0.224 0.332  ±  0.033 0.318  ±  0.127 0.242  ±  0.129 0.051 0.862 0.948
n4374(g−z) 72.7  ±  9.1 17.3  ±  9.1 1.038  ±  0.021 0.964  ±  0.025 1.369  ±  0.073 0.197  ±  0.016 0.125  ±  0.026 0.093  ±  0.036  <0.001 0.120 0.756
n4374(g−k) 59.8  ±  26.2 30.2  ±  26.2 2.920  ±  0.061 2.659  ±  0.249 3.632  ±  0.512 0.565  ±  0.041 0.408  ±  0.118 0.363  ±  0.165 0.810 0.745 0.548
n4374(z−k) 46.8  ±  27.4 43.2  ±  27.4 1.881  ±  0.048 1.664  ±  0.282 2.196  ±  0.412 0.479  ±  0.035 0.349  ±  0.135 0.347  ±  0.176 0.869 0.820 0.682
n4382(g−z) 31.8  ±  19.0 25.2  ±  19.0 1.019  ±  0.023 0.896  ±  0.095 1.228  ±  0.165 0.177  ±  0.015 0.096  ±  0.044 0.101  ±  0.061 0.493 0.710 0.452
n4382(g−k) 13.3  ±  13.9 43.7  ±  13.9 3.302  ±  0.063 2.539  ±  0.427 3.473  ±  0.188 0.461  ±  0.045 0.235  ±  0.134 0.335  ±  0.092 0.669 0.489 0.702
n4382(z−k) 14.7  ±  16.9 42.3  ±  16.9 2.284  ±  0.063 1.498  ±  0.533 2.483  ±  0.261 0.480  ±  0.047 0.212  ±  0.150 0.362  ±  0.129 0.599 0.034 0.699
n4406(g−z) 54.7  ±  17.2 21.3  ±  17.2 1.013  ±  0.022 0.922  ±  0.057 1.290  ±  0.112 0.189  ±  0.015 0.114  ±  0.031 0.094  ±  0.047 0.013 0.091 0.277
n4406(g−k) 39.4  ±  25.4 36.6  ±  25.4 3.236  ±  0.059 2.890  ±  0.334 3.658  ±  0.394 0.494  ±  0.042 0.307  ±  0.136 0.333  ±  0.151 0.970 0.816 0.490
n4406(z−k) 25.5  ±  20.8 50.5  ±  20.8 2.222  ±  0.050 1.893  ±  0.355 2.391  ±  0.350 0.410  ±  0.048 0.358  ±  0.243 0.303  ±  0.140 0.072 0.932 0.994
n4473(g−z) 31.8  ±  9.7 23.2  ±  9.7 1.024  ±  0.027 0.910  ±  0.037 1.198  ±  0.087 0.167  ±  0.017 0.066  ±  0.023 0.117  ±  0.036 0.002 0.601 0.293
n4473(g−k) 38.9  ±  9.0 16.1  ±  9.0 2.989  ±  0.086 2.861  ±  0.083 3.521  ±  0.586 0.598  ±  0.082 0.351  ±  0.097 0.681  ±  0.326 0.077 0.890 0.987
n4473(z−k) 40.9  ±  10.5 14.1  ±  10.5 1.964  ±  0.071 1.884  ±  0.197 2.465  ±  0.690 0.508  ±  0.078 0.317  ±  0.102 0.636  ±  0.372 0.022 0.926 0.998
n4486(g−z) 160.7  ±  22.6 140.3  ±  22.6 1.152  ±  0.013 0.970  ±  0.027 1.361  ±  0.032 0.227  ±  0.006 0.111  ±  0.017 0.121  ±  0.018  <0.001 0.11  <0.001
n4486(g−k) 179.2  ±  93.7 121.8  ±  93.7 3.199  ±  0.032 2.912  ±  0.335 3.653  ±  0.427 0.563  ±  0.026 0.473  ±  0.124 0.370  ±  0.181 0.963 0.682 0.585
n4486(z−k) 147.7  ±  38.1 153.3  ±  38.1 2.047  ±  0.026 1.996  ±  0.129 2.087  ±  0.039 0.423  ±  0.025 0.467  ±  0.147 0.324  ±  0.151  <0.001 0.92 1
n4526(g−z) 28.6  ±  4.2 26.4  ±  4.2 1.049  ±  0.033 0.852  ±  0.012 1.263  ±  0.027 0.223  ±  0.013 0.045  ±  0.008 0.120  ±  0.025  <0.001 0.05 0.001
n4526(g−k) 29.1  ±  15.9 25.9  ±  15.9 3.244  ±  0.082 3.001  ±  0.352 3.671  ±  0.540 0.596  ±  0.055 0.351  ±  0.162 0.510  ±  0.251 0.575 0.893 0.828
n4526(z−k) 27.7  ±  13.6 27.3  ±  13.6 2.195  ±  0.068 2.037  ±  0.260 2.467  ±  0.427 0.517  ±  0.055 0.262  ±  0.113 0.542  ±  0.209 0.287 0.915 0.908
n4552(g−z) 61.2  ±  21.3 45.8  ±  21.3 1.139  ±  0.019 0.992  ±  0.060 1.348  ±  0.088 0.212  ±  0.011 0.115  ±  0.035 0.125  ±  0.043 0.011 0.247  <0.001
n4552(g−k) 56.9  ±  32.1 50.1  ±  32.1 3.106  ±  0.055 2.853  ±  0.397 3.420  ±  0.415 0.510  ±  0.038 0.382  ±  0.179 0.377  ±  0.167 0.535 0.884 0.846
n4552(z−k) 58.8  ±  20.8 48.2  ±  20.8 1.967  ±  0.047 1.914  ±  0.135 2.090  ±  0.327 0.412  ±  0.040 0.255  ±  0.145 0.486  ±  0.199  <0.001 0.964 0.999
n4570(g−z) – – – – – – – – –
n4570(g−k) – – – – – – – – –
n4570(z−k) – – – – – – – – –
n4621(g−z) 32.5  ±  5.5 43.5  ±  5.5 1.162  ±  0.027 0.952  ±  0.022 1.318  ±  0.023 0.20  ±  0.011 0.084  ±  0.013 0.107  ±  0.018  <0.001 0.085 0.001
n4621(g−k) 24.4  ±  18.2 51.6  ±  18.2 3.215  ±  0.065 2.592  ±  0.482 3.383  ±  0.108 0.493  ±  0.045 0.347  ±  0.171 0.333  ±  0.105 0.429 0.839 0.857
n4621(z−k) 27.8  ±  18.9 48.2  ±  18.9 2.054  ±  0.047 1.867  ±  0.288 2.149  ±  0.196 0.368  ±  0.047 0.485  ±  0.203 0.244  ±  0.124 0.01 0.92 0.999
n4649(g−z) 76.4  ±  18.8 84.6  ±  8.8 1.192  ±  0.015 0.969  ±  0.021 1.394  ±  0.027 0.243  ±  0.009 0.105  ±  0.017 0.129  ±  0.016  <0.001 0.089  <0.001
n4649(g−k) 99.5  ±  26.7 61.5  ±  26.7 3.195  ±  0.043 2.857  ±  0.185 3.723  ±  0.141 0.582  ±  0.025 0.457  ±  0.074 0.279  ±  0.085 0.037 0.474 0.021
n4649(z−k) 76.4  ±  41.0 84.6  ±  41.0 2.003  ±  0.033 1.760  ±  0.307 2.144  ±  0.110 0.420  ±  0.021 0.402  ±  0.133 0.270  ±  0.100 0.341 0.817 0.872
n4660(g−z) 38.9  ±  7.9 10.1  ±  7.9 0.946  ±  0.020 0.895  ±  0.031 1.183  ±  0.094 0.136  ±  0.016 0.087  ±  0.017 0.076  ±  0.040 0.085 0.549 0.824
n4660(g−k) 38.1  ±  12.4 10.9  ±  12.4 2.979  ±  0.055 2.860  ±  0.141 3.678  ±  0.417 0.385  ±  0.043 0.277  ±  0.075 0.209  ±  0.135 0.479 0.195 0.904
n4660(z−k) 29.9  ±  15.5 19.1  ±  15.5 2.033  ±  0.050 1.87  ±  0.307 2.324  ±  0.398 0.339  ±  0.057 0.249  ±  0.169 0.393  ±  0.263 0.012 0.923 1

Notes. (1) Galaxy and colour distributions, (2) number of clusters assigned to the blue peak (Nb), (3) number of clusters assigned to the red peak (Nr), (4) the mean of the unimodal distribution (μ), (5) the mean of the blue peak (μb), (6) the mean of the red peak (μr), (7) the width of the unimodal distribution (σ), (8) the width of the blue peak (σb), (9) the width of the red peak (σb) and (10), (11), (12) the probabilities of the different statistics for rejecting a unimodal distribution P(χ2), P(DD), P(kurt).

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