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Fig. 3

image

Cluster optical centre offsets relative to their Planck SZ position as a function of cluster redshift. Open symbols correspond to photometric redshift determinations; filled dots are spectroscopic measurements. The dashed horizontal line at 5′ shows the maximum offset expected for a Planck SZ detection (i.e. a Planck beam). The dotted line corresponds to the angle subtended by 1 Mpc in projection at the corresponding redshift.

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