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Fig. 1
Left: X-ray fluxes of the 26 groups plotted against redshift. The dashed line is the HIFLUGCS limit. Right: X-ray luminosities plotted against redshift. The dashed line is the upper luminosity cut applied here. One object appears outside the limit due to conflicting luminosity measurements (Sect. 2).
This figure is made of several images, please see below:
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