1998A&A...336..807M

We calculate the reflection component predicted by the anisotropic illumination model of Henri & Petrucci (1997A&A...326...87H). This component appears to be more important than for isotropic models. The overall X/γ spectrum is found to be strongly angle-dependent. When the accretion disc is seen with a nearly edge-on orientation the reflection hump is weak, while a face-on viewing angle leads to a proeminent reflection hump with an equivalent reflection coefficient R∼50. Such reflection dominated Seyfert 1s galaxies are not observed. By fitting observed X/γ spectra, we derive inclination angle θ∼70° for MCG +8-11-11 and θ∼80° for IC 4329A and NGC 4151. Although the model succeed in reproducing individual observed spectra, it requires all the Seyfert 1s observed in the X-ray band to be seen with large inclination angles. Such a situation is highly improbable. On the other hand, we show that the ionisation of a fair part of the reflecting disk could represent an interesting improvement of the model, consistent with the data and relaxing the constraints on the high energy cut-off in Seyfert galaxies.