100 citations · 250 across the 5 of their papers we have counts for
5 papers
Spectral optical monitoring of a double-peaked emission line AGN Arp 102B: I. Variability of spectral lines and continuum
A. I. Shapovalova, L. C. Popovic, A. N. Burenkov +14
Here we present results of the long-term (1987-2010) optical spectral monitoring of the broad line radio galaxy Arp 102B, a prototype of active galactic nuclei with the double-peak…
Spectral Optical Monitoring of the Narrow Line Seyfert 1 galaxy Ark 564
A. I. Shapovalova, L. C. Popovic, A. N. Burenkov +14
We present the results of a long-term (1999--2010) spectral optical monitoring campaign of the active galactic nucleus (AGN) Ark 564, which shows a strong Fe II line emission in th…
Spectral optical monitoring of 3C390.3 in 1995-2007: I. Light curves and flux variation of the continuum and broad lines
A. I. Shapovalova, L. C. Popovic, A. N. Burenkov +9
Here we present the results of the long-term (1995-2007) spectral monitoring of the broad line radio galaxy \object{3C~390.3}, a well known AGN with the double peaked broad emissio…
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…
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…