Nuclear activity estimator in barred AGNs within pairs compared to control galaxies. Upper panel: ⟨Lum[OIII]⟩ values as a function of projected distance, r_p, for barred AGN galaxies in pair systems (solid lines). The mean value of Lum[OIII] for barred AGN galaxies in the control sample is plotted in horizontal dotted lines. Lower panel: Distributions of Lum[OIII] for barred AGN galaxies in pairs (solid lines), BGCP (dashed lines), and barred AGNs in the control sample (dotted lines).