207 citations · 557 across the 12 of their papers we have counts for
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A model for the Balmer pseudocontinuum in spectra of type 1 AGNs
Jelena Kovacevic, Luka C. Popovic, Wolfram Kollatschny
Here we present a new method for subtracting the Balmer pseudocontinuum in the UV part of type 1 AGN spectra. We calculate the intensity of the Balmer pseudocontinuum using the pro…
Spectral properties of a sample of type 1 AGNs: influence of star formation
Luka C. Popovic, Jelena Kovacevic, Milan S. Dimitrijevic
To find the spectral properties of AGNs in optical spectral band (around the Hb line) we constructed an Fe II template, that is covering Fe II emission from 4100 A to 5600 A. Using…
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 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…
Optical emission line properties of a sample of the broad-line AGNs: the Baldwin effect and eigenvector 1
Luka C. Popovic, Jelena Kovacevic
We divide a sample of 302 type-1 AGNs into two subsamples based on the narrow line [OIII]/Hbeta_{NLR} ratio, since we expect that there will be a stronger starburst (HII region) co…
RXJ 0921+4529: a binary quasar or gravitational lens?
L. Č. Popović, A. V. Moiseev, E. Mediavilla +4
We report the new spectroscopic observations of the gravitational lens RXJ 021+4529 with the multi-mode focal reducer SCORPIO of the SAO RAS 6-m telescope. The new spectral observa…