Fig. 2: Kernel density estimate of FSRQ seed factors.
From: Powerful extragalactic jets dissipate their kinetic energy far from the central black hole
A kernel density estimate (KDE) of the seed factor distribution of the combined sample of 62 SEDs (see Sections 2.3 and 2.5 of the Supplementary Information for more details). The KDE is plotted as a thick black line, with the area underneath shaded in gray as a visual aid. The median of the distribution is denoted by a black dotted line. The expected broad-line region seed factor and 1σ confidence interval are shown in blue, with solid and dashed lines, respectively, on the left. The expected molecular torus values are plotted similarly, on the right, in orange. See Sections 1.2 and 1.3 of the Supplementary Information for information on calculation of the plotted confidence intervals. The KDE peaks within the 1σ confidence interval of the molecular torus, nearly coincident with the expected value of the molecular torus. The KDE has the general appearance of a normal distribution. A bootstrapped (using 107 variates) two-sided Kolmogorov–Smirnov test indicates that normality cannot be rejected significantly (rejection significance of 1.42σ; p value 0.16).
