Spatial correlation between X-ray and γ-ray emission from the remnant. Left panel: 5.3° × 5.3° Fermi-LAT residual count map > 5 GeV centered at the coordinates used in Araya (2020), in units of counts per pixel. The image, of 90″ pixel size, is convolved with a σ = 15′ Gaussian. The magenta thick circle represents the 68% containment PSF size at 5 GeV energy threshold used for the construction of the residual count map. Right panel: eRASS:4 exposure-corrected intensity sky map, with the same parameters as the one displayed in Fig. 1. The blue contours mark the giga-electronvolt extension of 4FGL J1000.0-53l2e as displayed on the Fermi-LAT residual count map on the left panel of the figure.