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Table 1.
Number of XQSOs defined as RL or RQ based on different criteria of radio loudness.
| COSMOS | XXL-S | Total | |||||
|---|---|---|---|---|---|---|---|
| Threshold | N(RL) | N(RQ) | fRL(%) | N(RL) | N(RQ) | fRL(%) | fRL(%) |
| L1.4 GHz = 1024 W Hz−1 | 86 | 105 | 45.0 | 72 | 11 | 86.7 | 57.7 |
| L1.4 GHz = 1025 W Hz−1 | 16 | 175 | 8.4 | 52 | 31 | 62.7 | 24.8 |
| qREX = 24−21.984(1 + z)0.013 | 64 | 127 | 33.5 | 58 | 25 | 69.9 | 44.5 |
| RB = 1 | 133 | 58 | 69.6 | 66 | 15 | 81.5 | 73.2 |
| Rx = −3 | 12 | 179 | 6.3 | 37 | 46 | 44.6 | 17.9 |
Notes. In the number count of XXL-S sources using a B-band based radio loudness estimate, two sources without B-band luminosity estimate were excluded, while those with poorly constrained B-band luminosities were counted as being radio-loud.
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