8 citations · 8 across the 5 of their papers we have counts for
16 papers
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…
X-ray Variability of AGN and the Flare Model
R. W. Goosmann, B. Czerny, A. -M. Dumont +2
Short-term variability of X-ray continuum spectra has been reported for several Active Galactic Nuclei. Significant X-ray flux variations are observed within time scales down to 10…
The role of an accretion disk in AGN variability
B. Czerny
Optically thick accretion disks are considered to be important ingredients of luminous AGN. The claim of their existence is well supported by observations and recent years brought…
Low angular momentum accretion-outflow model of flares from Sgr A
Tapas K. Das, Bozena Czerny
We employ a low angular momentum accretion-outflow scenario to model the flares emanating out from the central region of Sgr A. The primary donor for matter accreting onto the…
Probing the Central Engine of the Narrow-Line Seyfert 1 Galaxies
Agnieszka Janiuk, Joanna Kuraszkiewicz, Bozena Czerny
The central engine of the the Narrow Line Seyfert 1 galaxies is being probed. We use the ASCA and RXTE data to model the X-ray primary continuum as well as the reflected component…