Notes. Model (i) is a single power law modified by cold absorption. The value Γ is the photon index and N_H is the hydrogen equivalent column density in units of 10²³ cm_-2, measured in the galaxy rest frame. Model (ii) is the same as Model (i), except that \nH for Fe is fitted independently from the other elements. Model (iii) assumes both SW and N sources have the standard power-law slope Γ = 1.9 and are modified by varying absorbing columns. Unlike in Models (i) and (ii), the effects of Compton scattering within the respective absorbing tori, computed by e-torus Ikeda et al. 2009, are included (see text for details). A narrow Gaussian for the Fe K line at 6.4 keV is included in all the fits. The fits with Models (i) and (iii) correspond to Figs. 2a and b, respectively.