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Fig. 1


1.1 mm continuum map for the galaxy cluster A2744 made with natural weighting. The image has an rms of 55 μJy beam-1 and has not been corrected by the primary beam sensitivity for visualization purposes. The color scale corresponds to −5σ to 5σ from blue to red. The black curve corresponds to the point where the primary beam correction is equal to 0.5, meaning where the sensitivity is 2σ. Squares show the positions of the sources with S/N ≥ 5. In the small box bottom left corner we show the synthesized beam of 0.̋63 × 0.̋49 and position angle of 86.̊16. The critical curves (i.g. where magnification is infinite) for a source at z = 2 given by the model Zitrin-NFWv3 (Zitrin et al. 2009, 2013) are shown in green.

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