Table 2

Properties of the images used for our analysis.

Image Frequency σ DR
[GHz] [mJy beam−1]
LOFAR 0.132 0.6/30 13228
MERLIN 1.658 26.2 189.58
VLA 5 GHz 4.760 16.4 753.42
VLA 15 GHz 14.97 2.58 216.31

Notes. The images are listed in order of increasing frequency. The dynamic range (DR) is defined as the ratio between the brightest pixel in the image and the thermal noise in the image, far from artefacts. The restoring beam size is 0.6′′ in all cases. Where a second σ value appears, it is the local noise near the source.

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