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Fig. 6.
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Example 45-deg2 region of the extragalactic sky from LoTSS-DR3. Such a region typically contains around 30 000 sources detected above 4.5 × RMS. Prominent in this image are the large radio galaxies NGC 315 (bottom) and 3C 31 (lower centre left), as well as the spiral galaxy M 31 (top).
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