Table 1.
Statistics of photometric redshift performance obtained for the KiDS-GAMA test sample.
| Sample | Size 1 | ⟨zspec⟩ | Photo-z model | ⟨zphot⟩ | ⟨δz⟩ | ⟨Δz⟩ | σΔz | SMAD(Δz) |
|---|---|---|---|---|---|---|---|---|
| Test data 2 | 26 035 | 0.230 | ANNz2 (9-band) | 0.230 | −0.0002 | 0.0005 | 0.0254 | 0.0180 |
| Hybrid-z (this work) | 0.230 | −0.0003 | 0.0002 | 0.0203 | 0.0145 | |||
| Clean data 3 | 20 965 | 0.232 | ANNz2 (9-band) | 0.232 | 0.00008 | 0.0006 | 0.0248 | 0.0178 |
| Hybrid-z (this work) | 0.232 | −0.0002 | 0.0003 | 0.0197 | 0.0142 | |||
| Red galaxies 4 | 11 062 | 0.240 | ANNz2 (9-band) | 0.239 | −0.0006 | 0.00005 | 0.0198 | 0.0155 |
| Hybrid-z (this work) | 0.239 | −0.0006 | 0.0002 | 0.0168 | 0.0129 | |||
| Blue galaxies 4 | 12 096 | 0.212 | ANNz2 (9-band) | 0.213 | 0.0007 | 0.0012 | 0.0269 | 0.0197 |
| Hybrid-z (this work) | 0.212 | 0.000001 | 0.0004 | 0.0212 | 0.0154 | |||
Notes.⟨ ⋅ ⟩ indicate the mean.
General test data from the KiDS-DR4 Bright sample crossmatched with GAMA in the equatorial fields, including both clean and contaminated galaxies.
Galaxies from the test sample which have the flag masked = 0 and are therefore free of any known artifacts B21.
Galaxies separated into red and blue based on their position on the absolute r-band magnitude - rest-frame u − g color diagram, see B21 for details.
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