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Fig. 2

The rejected SNR candidate in DEM L203 in optical lines ([S ii] (red), Hα (green), and [O iii] (blue), data from MCELS), with soft X-ray contours (from XMM-Newton) overlaid in white. The image spans 20′ across. The bright star seen in X-rays (lower right corner) is the Galactic star HD 269602.
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