Table 1: Best fit parameters for the IT effect on the catalogue presented in this paper. The first line, in bold face, refers to the entire catalogue, while the following lines refers to Seyfert galaxies (S), Quasars (Q), Broad-line objects (B) and Narrow-line objects (N). Correlations with Eddington ratio (LD/C: luminosity-dependent or constant X-ray bolometric correction), BH mass and redshift follow.
T M U A $\sigma_{\rm A}$ B $ \sigma_{\rm B}$ $ {\rho}$ P
(1) (2) (3) (4) (5) (6) (7) (8) (9)
IT effect: $\log(EW) = A + B\log(L_{\rm X,44})$
157 81 76 1.73 0.03 -0.17 0.03 -0.33 $\mathbf{4\times10^{-5}}$
79 (S) 53 26 1.73 0.06 -0.16 0.06 -0.25 0.04
78 (Q) 28 50 1.75 0.06 -0.19 0.06 -0.28 0.02
62 (B) 43 19 1.72 0.05 -0.21 0.06 -0.42 0.001
38 (N) 19 19 1.63 0.09 -0.21 0.08 -0.34 0.07
EW vs. Eddington ratio: $\log(EW) = A + B\log(L_{\rm bol}/L_{\rm edd})$
82 (LD) 50 32 1.61 0.05 -0.19 0.05 -0.38 $6\times10^{-4}$
82 (C) 50 32 1.64 0.05 -0.16 0.06 -0.26 0.03
EW vs. BH mass: $\log(EW) = A + B\log(M_{\rm BH,8})$
82 50 32 1.73 0.04 -0.07 0.04 -0.15 0.3
EW vs. z: $\log(EW) = A + B\log(z)$
157 81 76 1.63 0.06 -0.13 0.04 -0.16 0.08
Ratio$_{\rm Fe}$ vs. X-ray luminosity: $\log({\rm Ratio}_{\rm Fe}) = A + B\log(L_{\rm X,44})$
81 52 29 0.12 0.06 0.09 0.06 0.12 0.3
Notes: Cols. (1)-(3) Total number of points, measures and y upper limits; Cols. (4)-(7) Best fit parameter and errors for the linear fit $\log(y) = A + B\log(x)$; Cols. (8), (9) Mean Spearman's rank coefficient and Null Hypothesis probability. See Appendix A for details.

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