Table 3.
Contaminants amongst z > 6 galaxies.
| Filters | True z > 6 | Contaminants | Contamination fraction | Completeness |
|---|---|---|---|---|
| Euclid | 287 | 65 |
 |
91% |
| Euclid + Rubin | 291 | 71 |
 |
92% |
| Euclid + Rubin DDF | 301 | 13 |
 |
96% |
| Euclid + H20 | 286 | 65 |
 |
91% |
| Euclid + Spitzer | 188 | 27 |
 |
93% |
| Euclid + Rubin + Spitzer | 193 | 26 |
 |
95% |
| Euclid + Rubin DDF + Spitzer | 191 | 2 |
 |
94% |
| Euclid + H20 + Spitzer | 186 | 23 |
 |
92% |
Notes. Number of true z > 6 galaxies (that is, galaxies at fiducial zfid = 6–8 that are recovered at zsim > 6) and z > 6 contaminants (galaxies at fiducial zfid = 1–5.8 recovered at zsim > 6), from various combinations of Euclid and ancillary data. In addition, we report the fraction of contaminants amongst the total apparent z > 6 population, for which uncertainties from ten random realisations of the contaminant and true z > 6 source photometry. We also report the completeness, which represents the percentage of fiducial z = 6–8 galaxies that are correctly identified as z > 6 sources.
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