Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Bochkarev, N. G."'
Autor:
Kiehlmann, S., Savolainen, T., Jorstad, S. G., Sokolovsky, K. V., Schinzel, F. K., Marscher, A. P., Larionov, V. M., Agudo, I., Akitaya, H., Benítez, E., Berdyugin, A., Blinov, D. A., Bochkarev, N. G., Borman, G. A., Burenkov, A. N., Casadio, C., Doroshenko, V. T., Efimova, N. V., Fukazawa, Y., Gómez, J. L., Grishina, T. S., Hagen-Thorn, V. A., Heidt, J., Hiriart, D., Itoh, R., Joshi, M., Kawabata, K. S., Kimeridze, G. N., Kopatskaya, E. N., Korobtsev, I. V., Krajci, T., Kurtanidze, O. M., Kurtanidze, S. O., Larionova, E. G., Larionova, L. V., Lindfors, E., López, J. M., McHardy, I. M., Molina, S. N., Moritani, Y., Morozova, D. A., Nazarov, S. V., Nikolashvili, M. G., Nilsson, K., Pulatova, N. G., Reinthal, R., Sadun, A., Sasada, M., Savchenko, S. S., Sergeev, S. G., Sigua, L. A., Smith, P. S., Sorcia, M., Spiridonova, O. I., Takaki, K., Takalo, L. O., Taylor, B., Troitsky, I. S., Uemura, M., Ugolkova, L. S., Ui, T., Yoshida, M., Zensus, J. A., Zhdanova, V. E.
Context. Over the past few years, on several occasions, large, continuous rotations of the electric vector position angle (EVPA) of linearly polarized optical emission from blazars have been reported. These events are often coincident with high energ
Externí odkaz:
http://hdl.handle.net/10150/621373
http://arizona.openrepository.com/arizona/handle/10150/621373
http://arizona.openrepository.com/arizona/handle/10150/621373
Autor:
Shapovalova, A. I., Popovic, L. C., Afanasiev, V. L., Ilic, D., Kovacevic, A., Burenkov, A. N., Chavushyan, V. H., Marceta-Mandic, S., Spiridonova, O., Valdes, J. R., Bochkarev, N. G., Patino-Alvarez, V., Carrasco, L., Zhdanova, V. E.
Here we present the long-term optical spectral monitoring of a changing-look active galactic nuclei (AGN) NGC 3516 that covers 22 years (from 1996 to 2018). We explore a variability in the broad lines and continuum, finding that the continuum is chan
Externí odkaz:
http://arxiv.org/abs/1902.10845
Autor:
Shapovalova, Alla I., Popović, L. C., Chavushyan, V. H., Afanasiev, V. L., Ilić, D., Kovacević, A., Burenkov, A. N., Kollatschny, W., Spiridonova, O., Valdes, J. R., Bochkarev, N. G., Patino-Alvarez, V., Carrasco, L., Zhdanova, V. E.
We present the results of the long-term (20-year period, from 1996 to 2015) optical spectral monitoring of the Seyfert 1 galaxy NGC 7469. The variation in the light-curves of the broad He II {\lambda}4686A H{\beta} and H{\alpha} lines, and the contin
Externí odkaz:
http://arxiv.org/abs/1701.01490
Autor:
Popovic, L. C., Shapovalova, A. I., Ilic, D., Burenkov, A. N., Chavushyan, V. H., Kollatschny, W., Kovacevic, A., Valdes, J. R., Leon-Tavares, J., Bochkarev, N. G., Patino-Alvarez, V., Torrealba, J.
Publikováno v:
A&A 572, A66 (2014)
We investigate a long-term (26 years, from 1987 to 2013) variability in the broad spectral line properties of the radio galaxy Arp 102B, an active galaxy with broad double-peaked emission lines. We use observations presented in Paper I (Shapovalova e
Externí odkaz:
http://arxiv.org/abs/1408.6955
Autor:
Kiehlmann, S., Savolainen, T., Jorstad, S. G., Sokolovsky, K. V., Schinzel, F. K., Agudo, I., Arkharov, A. A., Benitez, E., Berdyugin, A., Blinov, D. A., Bochkarev, N. G., Borman, G. A., Burenkov, A. N., Casadio, C., Doroshenko, V. T., Efimova, N. V., Fukazawa, Y., Gomez, J. L., Hagen-Thorn, V. A., Heidt, J., Hiriart, D., Itoh, R., Joshi, M., Kimeridze, G. N., Konstantinova, T. S., Kopatskaya, E. N., Korobtsev, I. V., Kovalev, Y. Y., Krajci, T., Kurtanidze, O., Kurtanidze, S. O., Larionov, V. M., Larionova, E. G., Larionova, L. V., Lindfors, E., Lopez, J. M., Marscher, A. P., McHardy, I. M., Molina, S. N., Morozova, D. A., Nazarov, S. V., Nikolashvili, M. G., Nilsson, K., Pulatova, N. G., Reinthal, R., Sadun, A., Sergeev, S. G., Sigua, L. A., Sorcia, M., Spiridonova, O. I., Takalo, L. O., Taylor, B., Troitsky, I. S., Ugolkova, L. S., Zensus, J. A., Zhdanova, V. E.
Quasar 3C 279 is known to exhibit episodes of optical polarization angle rotation. We present new, well-sampled optical polarization data for 3C 279 and introduce a method to distinguish between random and deterministic electric vector position angle
Externí odkaz:
http://arxiv.org/abs/1311.3126
Autor:
Shapovalova, A. I., Popovic, L. C., Burenkov, A. N., Chavushyan, V. H., Ilic, D., Kollatschny, W., Kovacevic, A., Bochkarev, N. G., Valdes, J. R., Torrealba, J., Patino-Alvarez, V., Leon-Tavares, J., Benitez, E., Carrasco, L., Dultzin, D., Mercado, A., Zhdanova, V. E.
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-peaked broad emission lines, usually assumed to be emitted from an accreti
Externí odkaz:
http://arxiv.org/abs/1308.2407
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:
Popovic, L. C., Shapovalova, A. I., Ilic, D., Kovacevic, A., Kollatschny, W., Burenkov, A. N., Chavushyan, V. H., Bochkarev, N. G., Leon-Tavares, J.
A study of the variability of the broad emission-line parameters of 3C390.3, an active galaxy with the double-peaked emission-line profiles, is presented. We give a detail analysis of variation in the broad Ha and Hb profiles, the ratios, and the Bal
Externí odkaz:
http://arxiv.org/abs/1101.4867
Autor:
Shapovalova, A. I., Popovic, L. C., Burenkov, A. N., Chavushyan, V. H., Ilic, D., Kovacevic, A., Bochkarev, N. G., Leon-Tavares, J.
Results of the long-term (11 years, from 1996 to 2006) H$\alpha$ and H$\beta$ line variations of the active galactic nucleus of NGC 4151 are presented. High quality spectra (S/N>50 and R~8A) of H$\alpha$ and H$\beta$ were investigated. We analyzed li
Externí odkaz:
http://arxiv.org/abs/0910.2980
Autor:
Karitskaya, E. A., Bochkarev, N. G., Hubrig, S., Gnedin, Yu. N., Pogodin, M. A., Yudin, R. V., Agafonov, M. I., Sharova, O. I.
X-ray binary Cygnus X-1 is microquasar containing historically first candidate to black hole. Paradigm of magnetic disc accretion dominates in theoretical models describing processes taking place in objects containing black holes such as microquasars
Externí odkaz:
http://arxiv.org/abs/0908.2719