Table 9
Output of pre-filter workflow.
| Outcomes | ELAIS-N1 | Lockman Hole | Boötes | |||
|---|---|---|---|---|---|---|
| Number | Fraction | Number | Fraction | Number | Fraction | |
| LGZ | 346 | 1.11% | 121 | 0.41% | 94 | 0.5% |
| Accept LR match | 410 | 1.32% | 110 | 0.37% | 43 | 0.23% |
| No plausible match | 739 | 2.38% | 555 | 1.86% | 320 | 1.71% |
| Too zoomed in | 23 | 0.07% | 6 | 0.02% | 8 | 0.04% |
| Artefact | 72 | 0.23% | 15 | 0.05% | 7 | 0.04% |
| Uncatalogued host (a) | 97 | 0.31% | 77 | 0.26% | 102 | 0.54% |
| Blend (b) | 77 | 0.25% | 18 | 0.06% | 4 | 0.02% |
| Total | 1764 | 5.68% | 902 | 3.03% | 578 | 3.08% |
Notes. Percentages are calculated based on the number of PYBDSF catalogue sources in the multi-wavelength overlap area (listed in Table 5). Sources flagged as “Blend”, “Too zoomed in” or “Uncatalogued host” are sent to the expert-user workflow for classification. (a) Uncatalogued host: sources where the host galaxy was not detected in the multi-wavelength catalogue. These were later manually added using the expert-user workflow and forced photometry (see Sect. 4.3.4). (b) Slightly different PYBDSF parameters adopted (accidentally) for ELAIS-N1 compared to Lockman Hole and Boötes, result in more sources being initially separated into different PYBDSF components in Lockman Hole and Boötes, and hence fewer pre-filter “Blends” (but a higher proportion of sources needing the expert-user workflow; see Table 11).
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