Hydrogen column-density maps (N_H, in units of cm⁻²) derived by utilizing the DUSTMAPS python package (Green 2018), employing bayestar19 data cubes (Green et al. 2019), and converting the obtained extinction to N_H according to Eq. (2) (Foight et al. 2016). Left panel: N_H map until a 0.6 kpc distance. Middle panel: N_H map until 1.9 kpc distance. Right panel: N_H map until 1.33 kpc distance (preferred distance of the SNR given the distance measurements of the associated pulsar and the runaway star-binary companion to the pulsar’s progenitor). As shown in Figure 8, the black and white contours represent two levels of eRASS:4 X-ray data in the 0.5–1.0 keV energy band.