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Fig. 21

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CFHTLS i′ band image of the XLSSU J021754.6-052655 XMM-LSS source. White contours are XMM X-ray emission. Pink squares are galaxies with a spectroscopic redshift inside the structure. Red circles are galaxies with a photometric redshift at less than 0.15 from the structure redshift. Large symbols (circles or squares) are galaxies not satisfying the 2 magnitudes criteria in g′, r′, i′, or z′ bands. For these objects we also give the magnitude difference with the brightest galaxy in g′/r′/i′/z′.

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