Zobrazeno 1 - 10
of 661
pro vyhledávání: '"Semenova T."'
Autor:
Vlasyuk, V. V., Sotnikova, Yu. V., Volvach, A. E., Mufakharov, T. V., Kovalev, Yu. A., Spiridonova, O. I., Khabibullina, M. L., Kovalev, Yu. Yu., Mikhailov, A. G., Stolyarov, V. A., Kudryavtsev, D. O., Mingaliev, M. G., Razzaque, S., Semenova, T. A., Kudryashova, A. K., Bursov, N. N., Trushkin, S. A., Popkov, A. V., Erkenov, A. K., Rakhimov, I. A., Kharinov, M. A., Gurwell, M. A., Tsybulev, P. G., Moskvitin, A. S., Fatkhullin, T. A., Emelianov, E. V., Arshinova, A., Iuzhanina, K. V., Andreeva, T. S., Volvach, L. N., Ghosh, A.
We present a study of the multiwavelength (MW) variability of the blazar AO 0235+164 based on the radio-to-$\gamma$-ray data covering a long time period from 1997 to 2023. The radio data are represented by the 1-22 GHz measurements from the RATAN-600
Externí odkaz:
http://arxiv.org/abs/2411.01497
Autor:
Sotnikova, Yu., Mikhailov, A., Mufakharov, T., An, T., Kudryavtsev, D., Mingaliev, M., Udovitskiy, R., Kudryashova, A., Stolyarov, V., Semenova, T.
Publikováno v:
Galaxies, Volume 12, Issue 3, p.25 (2024)
We present a study of the radio variability of bright, $S_{1.4}\geq100$ mJy, high-redshift quasars at $z\geq3$ on timescales up to 30-40 years. The study involved simultaneous RATAN-600 measurements at frequencies of 2.3, 4.7, 8.2, 11.2, and 22.3 GHz
Externí odkaz:
http://arxiv.org/abs/2406.01458
Autor:
Guo, S., An, T., Liu, Y., Sotnikova, Y., Volvach, A., Mufakharov, T., Chen, L., Cui, L., Wang, A., Xu, Z., Zhang, Y., Xu, W., Kovalev, Y. A., Kovalev, Y. Y., Kharinov, M., Erkenov, A., Semenova, T., Volvach, L.
Publikováno v:
A&A 685, L11 (2024)
Context : Understanding the mechanisms that launch and shape powerful relativistic jets from supermassive black holes (SMBHs) in high-redshift active galactic nuclei (AGN) is crucial for probing the co-evolution of SMBHs and galaxies over cosmic time
Externí odkaz:
http://arxiv.org/abs/2404.16343
Autor:
Vlasyuk, V. V., Sotnikova, Yu. V., Volvach, A. E., Spiridonova, O. I., Stolyarov, V. A., Mikhailov, A. G., Kovalev, Yu. A., Kovalev, Y. Y., Khabibullina, M. L., Kharinov, M. A., Yang, L., Mingaliev, M. G., Semenova, T. A., Zhekanis, P. G., Mufakharov, T. V., Udovitskiy, R. Yu., Kudryashova, A. A., Volvach, L. N., Erkenov, A. K., Moskvitin, A. S., Emelianov, E. V., Fatkhullin, T. A., Tsybulev, P. G., Nizhelsky, N. A., Zhekanis, G. V., Kravchenko, E. V.
We present an optical-to-radio study of the BL Lac object S4 0954+658 observations during 1998-2023. The measurements were obtained with the SAO RAS Zeiss-1000 1-m and AS-500/2 0.5-m telescopes in 2003-2023, with the RATAN-600 radio telescope at 1.25
Externí odkaz:
http://arxiv.org/abs/2401.03992
Autor:
Sotnikova, Yu., Mufakharov, T., Udovitskiy, R., Mingaliev, M., Semenova, T., Erkenov, A., Bursov, N., Mikhailov, A., Cherepkova, Yu.
Publikováno v:
Astrophysical Bulletin Vol. 77, No.4, pp.397-410 (2022)
In this paper we present the RATAN-600 multi-frequency catalogue of blazars, an updated version of the BLcat: the RATAN-600 multi-frequency catalogue of BL Lacertae objects. The main novelty in the catalogue is an extension of the sample with flat-sp
Externí odkaz:
http://arxiv.org/abs/2211.11279
Radio Variability and Broad-Band Spectra of Infrared Galaxies with and without OH Megamaser Emission
Autor:
Sotnikova, Yu. V., Mufakharov, T. V., Mikhailov, A. G., Stolyarov, V. A., Wu, Z. Z., Mingaliev, M. G., Semenova, T. A., Erkenov, A. K., Bursov, N. N., Udovitskiy, R. Y.
Publikováno v:
Published in Astrophysical Bulletin, Vol. 37, No. 3, pp. 246-263 (2022)
We study the radio variability of galaxies with and without sources of hydroxyl (OH) megamaser radiation based on the continuum radio measurements conducted in 2019-2022 with the radio telescope RATAN-600 at frequencies of 2.3, 4.7, 8.2, and 11.2 GHz
Externí odkaz:
http://arxiv.org/abs/2210.05207
Autor:
Sotnikova, Yu. V., Wu, Z. Z., Mufakharov, T. V., Mikhailov, A. G., Mingaliev, M. G., Erkenov, A. K., Semenova, T. A., Bursov, N. N., Udovitskiy, R. Y., Stolyarov, V. A., Tsybulev, P. G., Chen, Y. J., Zhang, J. S., Shen, Z. Q., Jiang, D. R.
We present a study of the radio continuum properties of two luminous/ultraluminous infrared galaxy samples: the OH megamaser (OHM) sample (74 objects) and the control sample (128 objects) without detected maser emission. We carried out pilot observat
Externí odkaz:
http://arxiv.org/abs/2112.11985
Autor:
Sotnikova, Yu., Mikhailov, A., Mufakharov, T., Mingaliev, M., Bursov, N., Semenova, T., Stolyarov, V., Udovitskiy, R., Kudryashova, A., Erkenov, A.
We present the radio properties of optically selected quasars with $z\geq3$. The complete sample consists of 102 quasars with a flux density level $S_{1.4}\geq100$ mJy in a declination range -35$^{\circ}$ $\leq$ Dec $\leq$ +49$^{\circ}$. The observat
Externí odkaz:
http://arxiv.org/abs/2109.14029
Autor:
Sotnikova, Yu., Mufakharov, T., Majorova, E., Mingaliev, M., Udovitskiy, R., Bursov, N., Semenova, T.
Gigahertz-Peaked spectrum (GPS) sources are compact active galactic nuclei, presumably young precursors of bright radio sources. The study of GPS radio properties provides information about the features of synchrotron radiation in extragalactic sourc
Externí odkaz:
http://arxiv.org/abs/1911.12769
Autor:
Popov, A. Yu.1,2 (AUTHOR) station@list.ru, Semenova, T. Yu.1,2 (AUTHOR)
Publikováno v:
Mathematical Notes. Apr2023, Vol. 113 Issue 3/4, p525-537. 13p.
