Table 1.
DES-Y1 mean redshifts of the four tomographic bins calibrated with COSMOS-2015 (T18) and spectroscopic redshifts (this work).
| Tom. | COSMOS-2015 | Spec-z (DIR) |
|---|---|---|
| bin | ⟨z⟩ | ⟨z⟩ |
| 1 | 0.389 ± 0.016 | 0.403 ± 0.008 |
| 2 | 0.507 ± 0.013 | 0.560 ± 0.014 |
| 3 | 0.753 ± 0.011 | 0.773 ± 0.011 |
| 4 | 0.949 ± 0.022 | 0.984 ± 0.009 |
Notes. The spectroscopic calibration consistently favors distributions with higher mean redshifts compared to COSMOS-2015 (the same is found for the median redshifts). We note that our mock analysis of the spectroscopic calibration based on the MICE2 simulation suggests lower mean redshifts by approximately 0.01−0.03 depending on the tomographic bin (see Appendix A for details on the mock analysis along with a discussion of its limitations and cosmological implications).
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