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Fig. B.2.
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Curvature uncertainty map of Abell 2256, including a systematic 10% flux scale uncertainty and map noise, with the restoring beam of 39″ × 24″ shown in the bottom left inset. The median uncertainty is 0.33. The contours show 144 MHz frequency [3, 6, 12, 24, 48]σ levels where σ denotes the background rms noise level.
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