75 citations · 75 across the 2 of their papers we have counts for
5 papers
Jet-BLR connection in the radio galaxy 3C 390.3
T. G. Arshakian, J. Leon-Tavares, A. P. Lobanov +5
Variations of the optical continuum emission in the radio galaxy 3C 390.3 are compared to the properties of radio emission from the compact, sub-parsec-scale jet in this object. We…
Long-term variability of the optical spectra of NGC 4151: I. Light curves and flux correlations
A. I. Shapovalova, L. C. Popovic, S. Collin +13
Results of a long-term spectral monitoring of the active galactic nucleus of NGC 4151 are presented (11 years, from 1996 to 2006). High quality spectra (S/N>50 in the continuum nea…
Observational evidence for the link between the variable optical continuum and the jet of a radio-loud galaxy 3C 390.3
Tigran G. Arshakian, Andrei P. Lobanov, Vahram H. Chavushyan +2
The ``central engine'' of AGN is thought to be powered by accretion on a central nucleus believed to be a super-massive black hole. The localization and exact mechanism of the ener…
Probing the physical properties of the NGC 5548 Broad Line Region using Balmer lines
L. C. Popovic, A. I. Shapovalova, V. H. Chavushyan +4
We investigate the physical characteristics of the Broad Line Region (BLR) of NGC 5548 using the Boltzmann plot (BP) method, that we applied on the Balmer lines observed from 1996…
Profile variability of the H-alpha and H-beta broad emission lines in NGC5548
A. I. Shapovalova, V. T. Doroshenko, N. G. Bochkarev +10
Between 1996 and 2002, we have carried out a spectral monitoring program for the Seyfert galaxy NGC 5548. High quality spectra (S/N>50), covering the spectral range (4000-7500)AA w…