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Fig. 2.

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eRASS:4 RGB exposure-corrected intensity sky map, with energy-to-color correspondence: R: 0.3–0.6 keV, G: 0.6–1.0 keV, and B: 1.0–1.5 keV, in units of counts per pixel with a pixel size of 10″. Similarly to Fig. 1, all point sources are masked out, and the image is convolved with a σ = 2′ Gaussian aimed at enhancing the visibility of the diffuse X-ray emission.

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