Table 4
Number and percentage of recovered sources at each wavelength for T1 and T2 runs using different thresholds.
| Wavelength | Test run | σt | Recovered | Percentage |
| (μm) | sources | (%) | ||
|
|
||||
| 70 | T1 | 8.5 | 1436 | 95.7 |
| 160 | T1 | 8.5 | 1500 | 100 |
| 250 | T1 | 8.0 | 1500 | 100 |
| 350 | T1 | 4.0 | 996 | 99.6 |
| 500 | T1 | 4.0 | 998 | 99.8 |
| 70 | T2 | 10.5 | 1500 | 100 |
| 160 | T2 | 7.5 | 1496 | 99.7 |
| 250 | T2 | 8.0 | 1500 | 100 |
| 350 | T2 | 3.0 | 1000 | 100 |
| 500 | T2 | 3.0 | 1000 | 100 |
Notes. Column 1: reference wavelength; Col. 2: reference test run; Col. 3: thresholds fixed at each wavelength; Cols. 4 and 5: number and percentage of recovered sources respectively for each wavelength and test run. With these thresholds Hyper finds no false positives, and for T1 the percentage of recovered sources is very close to 100% in all bands except the 70 μm map, where the recovered sources are 95.7%, Cols. 4 and 5. For T2 the percentage of recovered sources is 100% at all wavelengths except at 160 μm, where Hyper only misses 4 sources out of 1500. This is due to limiting the false positives generated by the noise in the maps as described in the text.
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