The X-ray luminosity function in the 10–50 keV band. Left panel: Compton-thick (logN_H[cm⁻²] = 24 − 25) X-ray luminosity function in the redshift range 0.0 ≤ z ≤ 0.05. The shaded regions represent the 68% and 95% confidence intervals. The points show the binned 1/V_max luminosity function with the corresponding 68% uncertainties. Right panel: Our luminosity function compared with those of (Akylas et al. 2016; Ananna et al. 2022) and also by the population synthesis models of Ananna et al. (2019). The best-fitting model of the latter is evaluated at the mean redshift of our analysis (z = 0.025).