Parameter space around the best-fit LPxEBL spectral model for the α_norm and β parameters of the finke2022 EBL model. The color map gives the distance in standard deviations from the best-fit parameters (shown by the black cross), i.e., the lowest value provides the best fit. The black contours give the 1σ, 2σ, 3σ, and 4σ uncertainty contours. The vertical green lines show the α_norm = 1 and α_norm = 5.5, which provides the 95% c.l. UL on the α parameter. For comparison, the dotted red line shows the α_norm that corresponds to the UL above which the finke2022 EBL model would start to contradict the ULs from Biteau & Williams (2015).