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Fig. 2


Pseudo colour (gri) RTT150 images of Planck clusters, with the colour map adjusted to emphasize the red sequence of galaxies in the centres of clusters. The angular size of the images is about 8. Upper left: PSZ1 G098.24-41.15, z = 0.436. Upper right: PSZ1 G100.18-29.68, z = 0.485. Lower left: PSZ1 G138.11+42.03, z = 0.496. Lower right: PSZ1 G209.80+10.23, z = 0.677.

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