99 citations · 242 across the 5 of their papers we have counts for
5 papers
Reflection in Seyfert Galaxies and the Unified Model of AGN
Claudio Ricci, Roland Walter, Thierry J. -L. Courvoisier +1
We present a deep study of the average hard X-ray spectra of Seyfert galaxies. We analyzed all public INTEGRAL IBIS/ISGRI data available on all the 165 Seyfert galaxies detected at…
Extreme flux states of NGC 4151 observed with INTEGRAL
P. Lubinski, A. A. Zdziarski, R. Walter +5
We present a comprehensive spectral analysis of all INTEGRAL data obtained so far for the X-ray--bright Seyfert galaxy NGC 4151. We also use all contemporaneous data from RXTE, XMM…
Multi-Zone warm and cold clumpy absorbers in 3 Seyfert galaxies
C. Ricci, V. Beckmann, M. Audard +1
We present the first detailed X-ray analysis of three AGN, the Seyfert 1 galaxies UGC 3142 and ESO 140-43, and the Seyfert 2 galaxy ESO 383-18, in order to study the geometry and t…
A deep INTEGRAL hard X-ray survey of the 3C 273/Coma region
S. Paltani, R. Walter, I. M. McHardy +3
(abridged) We present an analysis of the deepest hard X-ray survey to date of about 2500 deg^2 performed by the IBIS instrument on board INTEGRAL in the 20-60 keV band, with a tota…
Hard X-ray Variability of AGN
V. Beckmann, S. D. Barthelmy, T. J. -L. Courvoisier +4
Aims: Active Galactic Nuclei are known to be variable throughout the electromagnetic spectrum. An energy domain poorly studied in this respect is the hard X-ray range above 20 keV.…