eROSITA’s soft X-ray image of the Per-Tau region (originally published online). The RGB colors correspond to X-ray energies, from 0.2 keV (red) to 2.3 keV (blue). The green oval is the projected Per-Tau shell outline (the distorted shape is a result of the Aitoff map projection of eROSITA’s all-sky map). The red oval within the Per-Tau shell, highlights a region of enhanced X-ray emission, which is also seen in the ROSAT X-ray data (see Figure 4 panels(e)–(f)).