Sky density of AXES X-ray sources and AXES-2MRS groups. Top panel: sky-density of sources as a function of X-ray flux in the 0.5– 2.0 keV band (log N(>S) − log S) for AXES X-ray sources (black), and AXES-2MRS groups (blue). AXES X-ray sources in the extragalactic region (nH < 5 × 10²⁰ cm⁻²) are shown in purple, while extragalactic AXES-2MRS groups are shown in red. The flux of the AXES-2MRS sources has been extrapolated to R₅₀₀ , while for AXES we show the measured flux. Bottom panel: cumulative distribution for the X-ray flux in the 0.5–2.0 keV band. Other details are the same as the top panel.