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Table 2.

Radio fluxes of the median LOFAR radio-detected quasars (RDQs) and LOFAR radio-undetected quasars (RUQs) stacked according to redshift between 150 MHz and 3.0 GHz.

zbin 150 MHz 325 MHz 1.4 MHz 3.0 MHz

RDQs [μJy] [μJy] [μJy] [μJy]
0.0 ≤ z ≤ 1.0 569 ± 5 557 ± 4 154 ± 5 163 ± 5
1.0 <  z ≤ 1.8 648 ± 30 513 ± 15 136 ± 1 108 ± 1
1.8 <  z ≤ 2.7 671 ± 30 600 ± 9 175 ± 2 123 ± 1
2.7 <  z ≤ 6.15 798 ± 190 551 ± 100 185 ± 3 144 ± 4

RUQs [μJy] [μJy] [μJy] [μJy]

0.0 ≤ z ≤ 1.0 113.38 ± 8.3 102.28 ± 9.6 31.24 ± 3.6 < 30.56
1.0 <  z ≤ 1.8 77.30 ± 4.2 76.48 ± 8.6 19.04 ± 1.3 < 19.26
1.8 <  z ≤ 2.7 75.85 ± 7.5 55.28 ± 4.8 15.03 ± 1.6 < 26.98
2.7 <  z ≤ 6.15 92.85 ± 10.2 100.70 ± 19.9 21.86 ± 3.3 < 41.18

1σ sensitivity 55 300 28 140

Notes.

Values without error bars are 5σ upper limits derived at the center of the median stacked images. The 1σ sensitivity is also indicated for each frequency.

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