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Fig. A.1
LOFAR 6 arcsec cutout of some of the sources shown in Fig. 7. Contour levels are − 3, 3, 5, 10, 20, 40, and 80 × σ, where σ = 50 μJy beam−1. From top to bottom: J105221+58, J110135+58, and J110317+57. The position of the core (and optical identification) is marked by the cross.
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