Fig. 1

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Single-band (left) and false-color (right) exposure-corrected images of Puppis A in the 0.2–2.3 keV range as seen by eROSITA. Both images were smoothed using a Gaussian kernel of width 6”. The color scale in this, as in all images shown in this work, is logarithmic. The contours in the left panel trace the 0.2–2.3 keV emission at levels of 1 × 10−4,3 x 10−4, 1 × 10−3,2 × 10−3,3 × 10−3 cts−1 arcsec−2. For comparison, the local background level in the broad band, measured in a region around 30’ northeast of the rim of Puppis A using the same observation, is around 1.2 × 10−5 ct s−1 arcsec−2.

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