Fig. 1.
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UVJ diagram. Rest-frame U − V, V − J colour–colour diagram of the sources in the SMACS-0723 catalogue. The black solid lines represent the standard selection box defined in Schreiber et al. (2015). The green and grey hexagons (linearly scaled from 0 to 7) show the density distribution of the full sample of QGs and SFGs, respectively, while the red circles denote the position of final sample of QGs considered in this study.
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