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Fig. 3.

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Common resolution (39″ × 24″) LOFAR images of Abell 2256 at different frequencies with the restoring beam shown in the bottom left inset. The background noise levels are σ = 0.4, 1.7 and 9 mJy beam−1 respectively. Contours are drawn at [3, 6, 12, …, 384]σ.
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