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Cho, Ilje (author), Gómez, José L. (author), Lico, Rocco (author), Zhao, Guang Yao (author), Traianou, Efthalia (author), Dahale, Rohan (author), Fuentes, Antonio (author), Toscano, Teresa (author), Gurvits, L. (author)We present total intensity and linear polarization images of OJ 287 at 1.68 GHz, obtained through space-based very long baseline interferometry (VLBI) observations with RadioAstron on April 16, 2016. The observations were conducted using a ground array consisting of the Very Long Baseline Array (VLBA) and the European VLBI Network (EVN)....journal article 2024
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Álvarez-Márquez, J. (author), Labiano, A. (author), Guillard, P. (author), Dicken, D. (author), Argyriou, I. (author), Patapis, P. (author), Kavanagh, P. J. (author), Alberts, S. (author), Brandl, B.R. (author)Context. During the commissioning of the James Webb Space Telescope (JWST), the mid-infrared instrument (MIRI) observed NGC 6552 with the MIRI Imager and the Medium-Resolution Spectrograph (MRS). NGC 6552 is an active galactic nucleus (AGN) at a redshift of 0.0266 (DL = 120 Mpc) classified as a Seyfert 2 nucleus in the optical and Compton...journal article 2023
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Benke, P. (author), Gabányi, K. E. (author), Frey, S. (author), An, T. (author), Gurvits, L. (author), Kun, E. (author), Mohan, P. (author), Paragi, Z. (author), Ros, E. (author)Context. PSO J334.2028+1.4075 (PSO J334) is a luminous quasar located at redshift z = 2.06. The source gained attention when periodic flux density variations were discovered in its optical light curve. These variations were initially interpreted as the variability due to the orbital motion of a supermassive black hole binary (SMBHB) residing...journal article 2023
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Potzl, F. M. (author), Lobanov, A. P. (author), Gomez, J. L. (author), Bach, U. (author), Fuentes, A. (author), Gurvits, L. (author), Jauncey, D. L. (author), Kovalev, Y. Y. (author), Kravchenko, E. V. (author)Context. Supermassive black holes in the centres of radio-loud active galactic nuclei (AGN) can produce collimated relativistic outflows (jets). Magnetic fields are thought to play a key role in the formation and collimation of these jets, but the details are much debated. Aims. We study the innermost jet morphology and magnetic field...journal article 2021
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Nokhrina, E. E. (author), Gurvits, L. (author), Beskin, V. S. (author), Nakamura, M. (author), Asada, K. (author), Hada, K. (author)We propose a new method of estimating the mass of a supermassive black hole residing in the centre of an active galaxy. The active galaxy M87 offers a convenient test case for the method due to the existence of a large amount of observational data on the jet and ambient environment properties in the central area of the object. We suggest that...journal article 2019