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Fig. 3.


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Left panel: Stokes I dirty image of a ∼20 degree radius field around the NCP using a single sub-band (122 MHz) of A12-HBA data and all A12-HBA baselines (|u|< 400) available after flagging. Right panel: Stokes I image for the same field with the same imaging parameters and baseline range, but using LOFAR-HBA station beam-formed data that lack the shortest baselines. The dotted circles and spokes represent different declinations and right ascension, respectively.

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