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Fig. 5.

image

Distribution of the optical centre offsets relative to their Planck SZ positions for the sample of 51 clusters. Thirty-four confirmed clusters included in Table A.1 (dots) and 17 clusters potentially associated with the corresponding PSZ2 source listed in Table A.2 (squares). Inner dashed line corresponds to 3′.1 radius region, which encloses the 68% of the PSZ2 confirmed clusters. External dashed line encloses the 2 × FWHM beam of the Planck SZ detection. Cases with multiple optical counterparts have been excluded from this analysis.

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