Fig. 1
The X-ray-optical overlay of the representative cluster 2XMM J104421.8+213029 at photometric redshift =0.4975. The X-ray contours are overlaid on the SDSS co-added image obtained in r, i, and z-bands. The field of view is 4′ × 4′ centred on the X-ray cluster position. The cross-hair indicates the cluster stellar mass centre as given by Szabo et al. (2011).
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