271 citations · 4.6k across the 192 of their papers we have counts for
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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,…
The role of absorption and reflection in the soft X-ray excess of Active Galactic Nuclei : 1. Preliminary results
Loïc Chevallier, Suzy Collin, Anne-Marie Dumont +4
The 2-10 keV continuum of AGN is well represented by a single power law, generally attributed to a hot comptonizing medium, such as a corona above the accretion disk. At smaller en…
On the origin of bimodal duration distribution of Gamma Ray Bursts
A. Janiuk, B. Czerny, R. Moderski +3
The modified version of a bullet model for gamma ray bursts is studied. The central engine of the source produces multiple sub-jets that are contained within a cone. The emission o…
Radio Quiet AGN
B. Czerny, R. Goosmann, V. Karas +1
Active Galactic Nuclei are powered by accretion onto massive black holes. Although radio-quiet objects are not as spectacular sources of very high energy photons as radio-loud ones…
X-ray Variability of Active Galactic Nuclei and the Flare Model
R. W. Goosmann, B. Czerny, A. -M. Dumont +4
Short-term variability of X-ray spectra has been reported for several Active Galactic Nuclei. Significant X-ray flux variations are observed within time scales down to 10^4 -- 10^5…