141 citations · 855 across the 31 of their papers we have counts for
31 papers
The thermal instability of the warm absorber in NGC 3783
R. W. Goosmann, T. Holczer, M. Mouchet +5
We model the observed X-ray spectral continuum shape, ionic column densities, and absorption measure distribution (AMD) of the warm absorber in the Seyfert galaxy NGC 3783. We assu…
Thermal instability in X-ray photoionized media in Active Galactic Nuclei: II. Role of the thermal conduction in warm absorber
B. Czerny, L. Chevallier, A. C. Goncalves +2
A photoionized gas under constant pressure can display a thermal instability, with three or more solutions for possible thermal equilibrium. A unique solution of the structure of t…
Thermal instability in X-ray photoionized media in Active Galactic Nuclei: Influence on the gas structure and spectral features
A. C. Goncalves, S. Collin, A. -M. Dumont +1
A photoionized gas in thermal equilibrium can display a thermal instability, with 3 or more solutions in the multi-branch region of the S-shape curve giving the temperature versus…
A new model for the Warm Absorber in NGC 3783: a single medium in total pressure equilibrium
A. C. Goncalves, S. Collin, A. -M. Dumont +4
(Abridged) Many active galactic nuclei exhibit X-ray features typical of the highly ionized gas called "Warm Absorber" (WA). Such a material appears to be stratified, displaying zo…
The puzzle of the soft X-ray excess in AGN: absorption or reflection?
L. Chevallier, S. Collin, A. -M. Dumont +4
The 2-10 keV continuum of AGN is generally well represented by a single power law. However, at smaller energies the continuum displays an excess with respect to the extrapolation o…
Modeling the Warm Absorber in AGN
A. Rozanska, R. Goosmann, A. -M. Dumont +1
We present a wide grid of models for the structure and transmission properties of warm absorbers in active galactic nuclei (AGN). Contrary to commonly used constant density models,…