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Fig. 6

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Hardness ratios of sources detected by XMM-Newton EPIC. Sources with HR errors smaller then 0.20 on both HR(i) and HR(i + 1) are shown as dots. Foreground stars and candidates are marked as big and small stars, AGN and candidates as big and small crosses, background galaxies and galaxy clusters as big “X” and their candidates as small “X”, SSS candidates as triangles, SNRs and candidates as big and small octagons, GlCs and XRBs as big squares and their candidates as small squares.

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