Top panels: Γ vs. F_{2 − 10 keV} (left) and Γ vs. λ_Edd (right) relation for IC 4329A. The black line shows the linear regression, and the shaded black regions represent the combined 1σ error on the slope and normalization. The dotted, dotted dashed, and dashed lines in the right panel represent the relations from Shemmer et al. (2008), Brightman et al. (2013) and Trakhtenbrot et al. (2017). Bottom left panel: E_c vs. λ_Edd. Bottom right panel: R_refl vs. λ_Edd. The plots include the data from our campaign and the data obtained from archival XMM-Newton, NuSTAR and Suzaku observations. E_c and R_refl cannot be measured when ony XMM-Newton data are available. The Eddington ratio was computed using the bolometric luminosity estimated using the bolometric correction to the 2–10 keV X-ray luminosity (κ_2 − 10) from Lusso et al. (2010).