83 citations · 610 across the 21 of their papers we have counts for
15 papers
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…
Lessons learnt from INTEGRAL AGN
V. Beckmann, C. Ricci, S. Soldi +7
The INTEGRAL mission provides a large data set for studying the hard X-ray properties of AGN and allows to test the unified scheme for AGN. We present results based on the analysis…
Fermi detected blazars seen by INTEGRAL
V. Beckmann, C. Ricci, S. Soldi
Multiwavelength observations are essential to constrain physical parameters of the blazars observed by Fermi/LAT. Among the 187 AGN significantly detected in public INTEGRAL data a…
Soft gamma-ray sources detected by INTEGRAL
D. Petry, V. Beckmann, H. Halloin +1
We aim to exploit the available INTEGRAL/SPI data to provide time-averaged spectra of the brightest soft gamma-ray sources. Employing a maximum-likelihood fit technique for our SPI…
The efficient low-mass Seyfert MCG-05-23-016
V. Beckmann, T. J. -L. Courvoisier, N. Gehrels +5
The Seyfert 1.9 galaxy MCG-05-23-016 has been shown to exhibit a complex X-ray spectrum. This source has moderate X-ray luminosity, hosts a comparably low-mass black hole, but accr…
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.…