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Fig. 5.
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FORS2 R-band image of the field of J0657. The eROSITA (Kurpas et al. 2023, 2024a) and XMM-Newton X-ray sky positions are marked by the blue and green circles, respectively (radius marks the 1σ positional accuracy). Brown circles (with arbitrary radius of 1″) mark field sources identified from an SExtractor run.
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