- PII
- S3034517025120106-1
- DOI
- 10.7868/S3034517025120106
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 51 / Issue number 12
- Pages
- 1157-1171
- Abstract
- Black hole images obtained by very long baseline interferometry (VLBI) by the Event Horizon Telescope are a new tool for testing general relativity in super-strong gravitational fields. These images demonstrated a ring-like structure which can be explained as the black hole shadow image. To date, there are no reliable methods for determining the parameters of these ring-like structures, such as diameter, width, and asymmetry. In this paper, an algorithm for determining black hole image parameters is proposed using a Gaussian asymmetric ring as an example. Using the proposed method, the diameter and asymmetry parameters of the image of a supermassive black hole in the galaxy M87 were estimated based on observational data obtained by the Event Horizon Telescope group.
- Keywords
- РСДБ черные дыры фотонные кольца
- Date of publication
- 10.03.2026
- Year of publication
- 2026
- Number of purchasers
- 0
- Views
- 18
References
- 1. Event Horizon Telescope Collaboration: K. Akiyama, A. Alberdi, W. Alef, K. Asada, et al., Astrophys. J. Letters 875(1), id. L1 (2019), arXiv:1906.11238 [astro-ph.GA].
- 2. Event Horizon Telescope Collaboration: K. Akiyama, A. Alberdi, W. Alef, J.C. Algaba, et al., Astrophys. J. Letters 930(2), id. L12 (2022).
- 3. Event Horizon Telescope Collaboration: K. Akiyama, A. Alberdi, W. Alef, K. Asada, et al., Astrophys. J. Letters 875(1), id. L6 (2019), arXiv:1906.11243 [astro-ph.GA].
- 4. Event Horizon Telescope Collaboration: K. Akiyama, A. Alberdi, W. Alef, J.C. Algaba, et al., Astrophys. J. Letters 930(2), id. L15 (2022).
- 5. I.D. Novikov, S.F. Likhachev, Y.A. Shchekinov, A.S. Andrianov, et al., Physics Uspekhi 64(4), 386 (2021).
- 6. X. Hong, Z. Shen, T. An, and Q. Liu, Acta Astronautica 102, 217 (2014).
- 7. F. Roelofs, H. Falcke, C. Brinkerink, M. Mocibrodzka, et al., Astron. and Astrophys. 625, id. A124 (2019).
- 8. L.I. Gurvits, Z. Paragi, V. Casasola, J. Conway, et al., Exp. Astron. 51(3), 559 (2021).
- 9. V. Kudriashov, M. Martin-Neira, F. Roelofs, H. Falcke, et al., Chin. J. Space Sci. 41(02), 211 (2021).
- 10. V. Kudriashov, M. Martin-Neira, I. Barat, P.M. Iglesias, E. Daganzo-Eusebio, N. Alagha, and V. Valenta, arXiv:2105.06901 [astro-ph.IM] (2021).
- 11. P. Kurczynski, M.D. Johnson, S.S. Doeleman, K. Haworth, et al., in Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, edited by L.E. Coyle, S. Matsuura, and M.D. Perrin, Proc. of SPIE 12180, id. 121800M (2022).
- 12. S. Trippe, T. Jung, J.-W. Lee, W. Kang, et al., arXiv:2304.06482 [astro-ph.IM] (2023).
- 13. A.G. Rudnitskiy, M.A. Shchurov, S.V. Chernov, T.A. Syachina, and P.R. Zapevalin, Acta Astronautica 212, 361 (2023), arXiv:2305.19072 [astro-ph.IM].
- 14. M.D. Johnson, A. Lupsasca, A. Strominger, G.N. Wong, et al., Science Advances 6(12), eaaz1310 (2020), arXiv:1907.04329 [astro-ph.IM].
- 15. P. Tiede, M.D. Johnson, D.W. Pesce, D.C.M. Palumbo, D.O. Chang, and P. Galison, Galaxies 10(6), id. 111 (2022), arXiv:2210.13498 [astro-ph.HE].
- 16. A.R. Thompson, J.M. Moran, and G.W. Swenson, Jr., Interferometry and Synthesis in Radio Astronomy, 3rd Edition (Springer, 2017).
- 17. S.V. Chernov, J. Experim. Theor. Phys. 132(6), 897 (2021).
- 18. A. Andrianov, S. Chernov, I. Girin, S. Likhachev, A. Lyakhovets, and Y. Shchekinov, Phys. Rev. D 105(6), id. 063015 (2022), arXiv:2203.00577 [astro-ph.HE].