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Table 3.

Noise levels (1σ) of the median radio images stacked according to redshift of LOFAR radio-detected quasars (RDQs) and LOFAR radio-undetected quasars (RUQs).

zbin NQSO 150 MHz 325 MHz 1.4 GHz 3.0 GHz

RDQs [μmJy/beam] [μJy/beam] [μJy/beam] [μJy/beam]
0.0 ≤ z ≤ 1.0 48 16.63 48.51 6.51 22.20

1.0 <  z ≤ 1.8 79 16.28 40.28 5.37 17.14
1.8 <  z ≤ 2.7 52 18.80 49.78 6.78 20.63
2.7 <  z ≤ 6.15 14 28.31 100.41 111.05 33.02

RUQs [μJy/beam] [μJy/beam] [μJy/beam] [μJy/beam]

0.0 ≤ z ≤ 1.0 203 6.88 22.99 2.81 10.79
1.0 <  z ≤ 1.8 588 4.07 17.52 1.61 6.34
1.8 <  z ≤ 2.7 405 4.68 21.04 1.96 7.65
2.7 <  z ≤ 6.15 140 8.16 39.40 3.21 12.82

Notes.

NQSO is the number of quasars within the corresponding redshift bin.

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