Fig. 13
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Photon energy Eflip where the polarisation angle γ flips from 90° to 0°, as a function of the torus column density, for different observer inclinations. The source parameters are Γ = 1.8 and Ecut = 200 keV (same as Fig. 9), but the torus covering factor CF is now 0.85. The Fe K absorption edge at 7.1 keV is indicated in black.
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