Fig. 14.
Left: 0.5−2 keV X-ray luminosity vs. redshift for the ROSAT NEP and Chandra COSMOS data (same symbols as in Fig. 11). Right: X-ray to optical flux ratio fXO vs. X-ray flux for all AGN from the Chandra COSMOS sources (small open circles), the mid-IR sample upper limits (triangles), the ROSAT NEP raster scan (solid circles), the SPIDERS 2RXS catalogue (open squares), and the SPIDERS XMMSL2 sources (plus signs). AGN1 are shown in red, AGN2 in blue symbols. CFHQS J142952+544717 is shown as orange diamond.
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