Zobrazeno 1 - 10
of 764
pro vyhledávání: '"Kovacevic J"'
Autor:
Narine, L., Enderton, A., Benge, M., Bihn, E., Brown, S., Kovacevic, J., Newbold, E., Schneider, K., Shaw, A.
Publikováno v:
Advancements in Agricultural Development; 2024, Vol. 5 Issue 3, p13-24, 12p
Autor:
Shapovalova, A. I., Popovic, L. C., Burenkov, A. N., Chavushyan, V. H., Ilic, D., Kovacevic, A., Kollatschny, W., Kovacevic, J., Bochkarev, N. G., Valdes, J. R., Torrealba, J., Leon-Tavares, J., Mercado, A., Benitez, E., Carrasco, L., Dultzin, D., de la Fuente, E.
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 the optical. This AGN is a narrow line Seyfert 1 (NLS1) galaxies, a grou
Externí odkaz:
http://arxiv.org/abs/1207.1782
Autor:
Shapovalova, A. I., Popovic, L. C., Ilic, D., Kovacevic, A., Kovacevic, J., Burenkov, A. N., Chavushyan, V. H.
Publikováno v:
Baltic Astronomy, vol. 20, 476-480, 2011
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 narrow line Syfert 1 (NLS1) galaxy with relatively narrow permitted o
Externí odkaz:
http://arxiv.org/abs/1201.2301
Autor:
Popović, L. Č., Moiseev, A. V., Mediavilla, E., Jovanović, P., Ilić, D., Kovačević, J., Muñoz, J.
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 observations were compared with the previously observed spectra of components
Externí odkaz:
http://arxiv.org/abs/1008.4156
Here we discuss the physical conditions in the emission line regions (ELR) of active galactic nuclei (AGN), with the special emphasize on the unresolved problems, e.g. the stratification of the Broad Line Region (BLR) or the failure of the photoioniz
Externí odkaz:
http://arxiv.org/abs/0908.2776
We report the results of 3D spectroscopic observations of Mrk 493 (NLS1 galaxy) with the integral-field spectrograph MPFS of the SAO RAS 6-m telescope. The difference in the slope of the optical continuum emission intensity across the nucleus part an
Externí odkaz:
http://arxiv.org/abs/0812.4817
We performed 3D spectroscopic observations of Mrk 493 in order to investigate the Fe II emitting region and their possible connection with the Hydrogen emitting region. We found that there is a strong Fe II emission in an extensive region ~ 4" x 4" a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0701684
By taking into account relativistic corrections to the magnetic dipole operator, the theoretical [OIII] 5006.843/4958.511 line intensity ratio of 2.98 is obtained. In order to check this new value using AGN spectra we present the measurements of the
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610848
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Akademický článek
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