133 citations · 1.2k across the 61 of their papers we have counts for
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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…
The analysis of the hydrogen broad Balmer line ratios: possible implications to the physical properties of the BLR of AGN
D. Ilic, L. C. Popovic, G. La Mura +2
We analyze the ratios of the broad hydrogen Balmer emission lines (from Hαto Hε) in the context of estimating the physical conditions in the broad line region (BLR) of active galac…
Spectral monitoring of AGNs: Preliminary results for Ark 564 and Arp 102B
A. I. Shapovalova, L. C. Popovic, D. Ilic +4
We present preliminary results of the long term spectral monitoring of two active galactic nuclei with different broad line shapes: Ark 564 and Arp 102B. Ark 564 is a bright nearby…