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Fig. 2.
catcorr results for the input fields to 4XMM-DR9s which could be astrometrically corrected: histograms of the applied shifts along right ascension (left, red crosses, ΔRA × cos(Dec)) and declination (left, blue pluses, ΔDec), the additional field rotation (right), and the resulting absolute field shift (left, black).
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