Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Shablovinskaya, E."'
Autor:
Jana, A., Ricci, C., Temple, M. J., Chang, H. -K., Shablovinskaya, E., Trakhtenbrot, B., Diaz, Y., Ilic, D., Nandi, P., Koss, M.
Changing-look active galactic nuclei (CLAGNs) show the appearance and disappearance of broad emission lines in their UV/optical spectra on timescales of months to decades. Here, we investigate how CL transitions depend on several AGN parameters such
Externí odkaz:
http://arxiv.org/abs/2411.08676
Autor:
Kolbin, A. I., Karpova, A. V., Suslikov, M. V., Bikmaev, I. F., Gilfanov, M. R., Khamitov, I. M., Shibanov, Yu. A., Zyuzin, D. A., Beskin, G. M., Plokhotnichenko, V. L., Gutaev, A. G., Karpov, S. V., Lyapsina, N. V., Medvedev, P. S., Sunyaev, R. A., Kirichenko, A. Yu., Gorbachev, M. A., Irtuganov, E. N., Gumerov, R. I., Sakhibullin, N. A., Shablovinskaya, E. S., Malygin, E. A.
SRGe J194401.8+284452 is the brightest point-like X-ray object within the position uncertainty ellipse of an unidentified $\gamma$-ray source 4FGL J1943.9+2841. We performed multi-wavelength spectral and photometric studies to determine its nature an
Externí odkaz:
http://arxiv.org/abs/2408.14136
Autor:
Shablovinskaya, E., Ricci, C., Chang, C-S., Tortosa, A., del Palacio, S., Kawamuro, T., Aalto, S., Arzoumanian, Z., Balokovic, M., Bauer, F. E., Gendreau, K. C., Ho, L. C., Kakkad, D., Kara, E., Koss, M. J., Liu, T., Loewenstein, M., Mushotzky, R., Paltani, S., Privon, G. C., Smith, K., Tombesi, F., Trakhtenbrot, B.
Publikováno v:
A&A 690, A232 (2024)
The origin of a compact millimeter (mm, 100-250 GHz) emission in radio-quiet active galactic nuclei (RQ AGN) remains debated. Recent studies propose a connection with self-absorbed synchrotron emission from the accretion disk X-ray corona. We present
Externí odkaz:
http://arxiv.org/abs/2403.19524
Autor:
Zaznobin, I. A., Burenin, R. A., Belinski, A. A., Bikmaev, I. F., Gilfanov, M. R., Dodin, A. V., Dodonov, S. N., Eselevich, M. V., Zheltoukhov, S. F., Irtuganov, E. N., Kotov, S. S., Krivonos, R. A., Lyskova, N. S., Malygin, E. A., Maslennikova, N. A., Medvedev, P. S., Meshcheryakov, A. V., Moiseev, A. V., Oparin, D. V., Potanin, S. A., Postnov, K. A., Sazonov, S. Yu., Safonov, B. S., Sakhibullin, N. A., Starobinsky, A. A., Suslikov, M. V., Sunyaev, R. A., Tatarnikov, A. M., Uskov, G. S., Uklein, R. I., Khabibullin, I. I., Khamitov, I. M., Khorunzhev, G. A., Churazov, E. M., Shablovinskaya, E. S., Shatsky, N. I.
Publikováno v:
Astronomy Letters 49 (2023) 599-620
We present the results of the optical identification and spectroscopic redshift measurements of 216 galaxy clusters detected in the SRG/eROSITA all-sky X-ray survey. The spectroscopic observations were performed in 2020-2023 with the 6-m BTA telescop
Externí odkaz:
http://arxiv.org/abs/2403.18625
Autor:
Liodakis, I., Shablovinskaya, E., Blinov, D., Savchenko, S. S., Malygin, E., Kotov, S., Kiehlmann, S., Readhead, A. C. S., Potter, S. B., Rieger, F. M., Grishina, T. S., Hagen-Thorn, V. A., Kopatskaya, E. N., Larionova, E. G., Morozova, D. A., Troitskiy, I. S., Troitskaya, Y. V., Vasilyev, A. A., Zhovtan, A. V., Borman, G. A.
Optical circular polarization observations can directly test the particle composition in black holes jets. Here we report on the first observations of the BL Lac type object S4 0954+65 in high linear polarized states. While no circular polarization w
Externí odkaz:
http://arxiv.org/abs/2311.03450
Autor:
Piotrovich, M. Yu., Shablovinskaya, E. S., Malygin, E. A., Buliga, S. D., Natsvlishvili, T. M.
The interaction of a supermassive black hole with the matter of an accretion disk in the presence of a magnetic field is the key mechanism of energy release in active galactic nuclei. However, determining the physical parameters of this system, such
Externí odkaz:
http://arxiv.org/abs/2309.12944
Autor:
Avdan, H., Sonbas, E., Dhuga, K. S., Vinokurov, A., Göğüş, E., Avdan, S., Solovyeva, Y. N., Kostenkov, A. E., Shablovinskaya, E. S., Goktas, D.
Archival {\it XMM-Newton}, {\it Chandra} and {\it Hubble Space Telescope (HST)} data have been used to study the X-ray and optical properties of two candidate ultraluminous X-ray sources (ULXs) in NGC\,4536. In order to search for potential optical c
Externí odkaz:
http://arxiv.org/abs/2303.12141
Autor:
Bikmaev, I. F., Kolbin, A. I., Shimansky, V. V., Khamitov, I. M., Irtuganov, E. N., Nikolaeva, E. A., Sakhibullin, N. A., Gumerov, R. I., Burenin, R. A., Gilfanov, M. R., Zaznobin, I. A., Krivonos, R. A., Medvedev, P. S., Mescheryakov, A. V., Sazonov, S. Yu., Sunyaev, R. A., Khorunzhev, G. A., Moiseev, A. V., Malygin, E. A., Shablovinskaya, E. S., Zheltoukhov, S. G.
We present the results of the optical identification, classification, as well as analysis of photometric and spectral observations of the X-ray transient SRGe2149+6736 detected by the eROSITA telescope during SRG all-sky X-ray survey. Photometric obs
Externí odkaz:
http://arxiv.org/abs/2212.12425
Autor:
Afanasiev, V. L., Amirkhanyan, V. R., Uklein, R. I., Perepelitsyn, A. E., Malygin, E. A., Shablovinskaya, E. S., Afanasieva, I. V.
This paper is devoted to the memory of Dr. Victor Afanasiev and his immense legacy. The report highlights the capabilities of two new instruments tested at the 1-meter Zeiss-1000 telescope of SAO RAS: the Stokes Polarimeter (StoP) and the MAGIC focal
Externí odkaz:
http://arxiv.org/abs/2112.02486
We discuss the polarization of broad emission lines in the type 1 active galactic nuclei (AGNs). The polarization depends on the geometry of the broad line region (BLR), and also on the polarization mechanism, or distribution of the scattering materi
Externí odkaz:
http://arxiv.org/abs/2111.06237