Table 1.
Number of included cells (Ncell) and sky coverage (Ω) for different masks and flux density thresholds (Smin).
| Mask | Ncell | Ω | Smin | Nrs | Nvas | Description |
|---|---|---|---|---|---|---|
| (sr) | (mJy) | |||||
| None | 8422 | 0.13458 | 0.00 | 325 694 | 318 520 | All sources |
| p | 7182 | 0.11476 | 0.00 | 306 684 | 300 601 | Sources within union of 53 discs (θ = 1.7 deg) |
| d | 7176 | 0.11467 | 0.00 | 306 670 | 300 588 | & Exclude cells with less than five value added sources |
| 1.00 | 108 539 | 102 940 | ||||
| 2.00 | 55 459 | 51 288 | ||||
| 4.00 | 33 040 | 30 556 | ||||
| 3 | 7104 | 0.11352 | 0.00 | 305 186 | 299 311 | & Exclude cells with Srms > 3 × median(Srms) |
| 1.05 | 101 714 | 96 404 | ||||
| 2 | 6954 | 0.11112 | 0.00 | 301 527 | 295 903 | & Exclude cells with Srms > 2 × median(Srms) |
| 0.70 | 158 226 | 152 662 | ||||
| 1.05 | 99 411 | 94 326 | ||||
| 1 | 2957 | 0.04725 | 0.00 | 152 498 | 150 568 | & Exclude cells with Srms > median(Srms) |
| 0.35 | 136 150 | 134 178 | ||||
| 0.70 | 66 027 | 64 118 | ||||
| 1.00 | 42 329 | 40 599 | ||||
| 1.05 | 39 919 | 38 222 | ||||
| 2.00 | 20 848 | 19 719 | ||||
| 4.00 | 11 805 | 11 269 | ||||
| z | 7139 | 0.11407 | 0.00 | – | 153 111 | “mask d” & Missing Pan-STARRS information & only sources with redshift information |
| 2.00 | – | 24 420 | ||||
| 4.00 | – | 14 506 | ||||
| z1 | 2940 | 0.04698 | 0.00 | – | 76 602 | “mask 1” & Missing Pan-STARRS information & only sources with redshift information |
| 2.00 | – | 9505 | ||||
| 4.00 | – | 5432 | ||||
Notes. Unless explicitly stated otherwise, we use the default “mask d” throughout this work. Thus we highlight the respective entry in bold font. The retained number of sources for each mask are shown for the LoTSS-DR1 radio source (Nrs) and value-added source (Nvas) catalogues. For detailed explanation see Sects. 3.4, 3.5 and 6.2.
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