99 citations · 258 across the 5 of their papers we have counts for
5 papers
Radiation spectra of warm and optically thick coronae in AGN
P. -O. Petrucci, D. Gronkiewicz, A. Rozanska +9
A soft X-ray excess above the 2-10 keV power law extrapolation is generally observed in AGN X-ray spectra. Presently there are two competitive models to explain it: blurred ionized…
The existence of warm and optically thick dissipative coronae above accretion disks
A. Rozanska, J. Malzac, R. Belmont +2
In the past years, several observations of AGN and X-ray binaries have suggested the existence of a warm T around 0.5-1 keV and optically thick, τ~ 10-20, corona covering the inner…
Reflection at large distance from the central engine in Seyferts
J. Malzac, P. O. Petrucci
We consider the possibility that most of the reflection component, observed in the hard X-ray spectra of Seyfert galaxies, could be formed on an extended medium, at large distance…
The effects of a comptonizing corona on the appearance of the reflection components in accreting black hole spectra
P. O. Petrucci, A. Merloni, A. Fabian +2
We discuss the effects of a comptonizing corona on the appearance of the reflection components, and in particular of the reflection hump, in the X-rays spectra of accreting black h…
An anisotropic illumination model of Seyfert I galaxies
P. O. Petrucci, G. Henri
We present a new model of accretion disk where the disk luminosity is entirely due to the reprocessing of hard radiation impinging on the disk. The hard radiation itself is emitted…