173 citations · 1.1k across the 25 of their papers we have counts for
10 papers · 1 filter
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…
Constraints on light bending and reflection from the hard X-ray background
P. Gandhi, A. C. Fabian, T. Suebsuwong +3
Light bending due to strong gravity has recently been invoked to explain variability and flux correlations between different bands in some accreting black holes. A characteristic f…
The broad-band spectrum of Cygnus X-1 measured by INTEGRAL
M. Cadolle Bel, P. Sizun, A. Goldwurm +9
The INTEGRAL satellite extensively observed the black hole binary Cygnus X-1 from 2002 November to 2004 November during calibration, open time and core program (Galactic Plane Scan…
The High Energy Spectrum of NGC 4151
V. Beckmann, C. R. Shrader, N. Gehrels +5
We present the first INTEGRAL observations of the type 1.5 Seyfert galaxy NGC 4151. Combining several INTEGRAL observations performed during 2003, totaling about 400 ks of exposure…
X-ray spectra produced by a hot plasma containing cold clouds
Julien Malzac, Annalisa Celotti
We compute the hard X-ray spectra from a hot plasma pervaded by small cold dense clouds. The main cooling mechanism of the plasma is Compton cooling by the soft thermal emission fr…
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…