Zobrazeno 1 - 10
of 2 340
pro vyhledávání: '"Oparin AN"'
Publikováno v:
Astronomy Reports, 2024, Vol.68, No.7, pp.619-640
Results of a study of physical parameters of stellar population in star formation regions in galaxies with signs of peculiarity NGC 3963 and NGC 7292 are presented. The study was carried out based on the analysis of photometric (UBVRI bands), H-alpha
Externí odkaz:
http://arxiv.org/abs/2410.06098
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
The similarity in physical conditions in winds of low-mass post-asymptotic giant branch stars and evolved massive stars leads to the appearance of an interesting phenomenon of spectral mimicry. Due to that the discovery of every new star with Wolf--R
Externí odkaz:
http://arxiv.org/abs/2312.15854
This report presents the results of optical polarimetric observations carried out with 6-m and 1-m telescopes at SAO RAS. The study of the blazar S5 0716+714 radiation showed the presence of a period of the variability of brightness and polarization
Externí odkaz:
http://arxiv.org/abs/2309.14299
Autor:
Kolbin, A. I., Suslikov, M. V., Kochkina, V. Yu., Borisov, N. V., Burenkov, A. N., Oparin, D. V.
The asynchrony of the polar SDSS~J085414.02+390537.3 was revealed using the data of ZTF photometric survey. The light curves show a beat period $P_{beat} = 24.6 \pm 0.1$~days. During this period the system changes its brightness by $\sim 3^m$. The pe
Externí odkaz:
http://arxiv.org/abs/2308.04597
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 24, Iss 4, Pp 548-553 (2024)
In recent years, the single-pixel imaging technique which uses a detector without spatial resolution and spatially modulated illumination patterns to reconstruct an object image has been finding its application for imaging objects in visibility obstr
Externí odkaz:
https://doaj.org/article/cb8f4998a7fb4bc5be8883714dfa0985
Autor:
Shablovinskaya, Elena, Popović, Luka Č., Uklein, Roman, Malygin, Eugene, Ilić, Dragana, Ciroi, Stefano, Oparin, Dmitry, Crepaldi, Luca, Slavcheva-Mihova, Lyuba, Mihov, Boyko, Nikolov, Yanko
Publikováno v:
Universe 2023, 9(1), 52
Earlier, we suggested the "reload" concept of the polarimetric reverberation mapping of active galactic nuclei (AGN), proposed for the first time more than 10 years ago. We have successfully tested this approach of reverberation mapping of the broad
Externí odkaz:
http://arxiv.org/abs/2301.05267
Though S0 galaxies are usually thought to be `red and dead', they often demonstrate weak star formation organised in ring structures and located in their outer disks. We try to clarify the nature of this phenomenon and its difference from star format
Externí odkaz:
http://arxiv.org/abs/2212.08951
Due to the first results on astrophysical X-ray polarization provided by \textit{IXPE} observatory, the interest in wavelength-dependent synchrotron polarization of BL Lac type objects increases. This paper presents the results of multi-band optical
Externí odkaz:
http://arxiv.org/abs/2212.03200
Autor:
Gerasimov, Ivan S., Egorov, Oleg V., Lozinskaya, Tatiana A., Moiseev, Alexei V., Oparin, Dmitry V.
Feedback from massive stars shapes the ISM and affects the evolution of galaxies, but its mechanisms acting at the small scales ($\sim 10$ pc) are still not well constrained observationally, especially in the low-metallicity environments. We present
Externí odkaz:
http://arxiv.org/abs/2210.07726