135 citations · 996 across the 47 of their papers we have counts for
6 papers · 1 filter
Accretion processes onto black holes: theoretical problems, observational constraints
Bozena Czerny, Marzena Sniegowska, Agnieszka Janiuk +1
We shortly summarize the standard current knowledge on the structure of the accretion flow onto black holes in galactic binary systems and in active galactic nuclei. We stress the…
Broad-line region in active galactic nuclei: Dusty or dustless?
Ashwani Pandey, Bozena Czerny, Swayamtrupta Panda +5
Context. Dust in active galactic nuclei is clearly present right outside the broad-line region (BLR) in the form of a dusty molecular torus. However, some models of the BLR predict…
UV Fe II emission model of HE 0413-4031 and its relation to broad-line time delays
Michal Zajaček, Swayamtrupta Panda, Ashwani Pandey +11
Fe II emission is a well-known contributor to the UV spectra of active galactic nuclei and the modeling of this part may affect the results obtained for the MgII emiss…
BAL effect in quasars due to source orientation
M. Sniegowska, M. H. Naddaf, M. L. Martinez-Aldama +3
We investigated a scenario where the presence of a broad absorption line (BAL) feature in quasars (QSOs) is contingent upon the line of sight being situated within an outflow cone…
Science with a small two-band UV-photometry mission III: Active Galactic Nuclei and nuclear transients
M. Zajaček, B. Czerny, V. K. Jaiswal +14
In this review (the third in the series focused on a small two-band UV-photometry mission), we assess possibilities for a small UV two-band photometry mission in studying accreting…
Wavelength-resolved reverberation mapping of intermediate redshift quasars HE 0413-4031 and HE 0435-4312: Dissecting Mg II, optical Fe II, and UV Fe II emission regions
Raj Prince, Michal Zajaček, S. Panda +24
We present the wavelength-resolved reverberation mapping (RM) of combined MgII and UV FeII broad-line emissions for two intermediate redshifts (z1), luminous quasars - HE 041…