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Fig. 2.

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LoTSS DR2 cutouts at central observing frequency νobs = 144 MHz and resolution θFWHM = 6″, centred around giant-generating BCGs of Local Universe clusters. All giants shown are discoveries of Oei et al. (2023a) for which no previous images have been published. Each cutout covers a solid angle of 15′×15′. Contours signify 3, 5, and 10 sigma-clipped standard deviations above the sigma-clipped median. For scale, we show the stellar Milky Way disk (with a diameter of 50 kpc) generated using the Ringermacher & Mead (2009) formula, alongside a 3 times inflated version. Each DESI Legacy Imaging Surveys DR9 (g, r, z) inset shows the central 3′×3′ region.

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