Open Access
Table 2.
Description and number of sub-samples of central (primary) galaxies for each parent sample.
| Sub-sample | Criteria | PrimAll | PrimB |
|---|---|---|---|
| Q | sSFR ≤ 10−10.5 h yr−1 | 40 420 (1.5%) | 8448 (0.5%) |
| SF | sSFR > 10−10.5 h yr−1 | 2 696 127 (98.5%) | 1 689 360 (99.5%) |
| Q10 | at or below 10th percentile of the sSFR distribution | 273 655 (10%) | 169 781 (10%) |
| SF10 | at or above 90th percentile of the sSFR distribution | 273 655 (10%) | 169 781 (10%) |
| Young10 | at or below 10th percentile of the stellar-age distribution | 273 650 (10%) | 169 780 (10%) |
| Old10 | at or above 90th percentile of the stellar-age distribution | 273 655 (10%) | 169 781 (10%) |
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