Swirling self-gravitating vortex as the imagination of the Hoag’s ring galaxy
V. M. Kontorovich and S. A. Poslavskyi
Institute of Radio Astronomy of the National Academy of Science of Ukraine, Kharkiv 61002, Ukraine V. N. Karazin Kharkiv National University, Kharkiv 61022, Ukraine
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Received January 25, 2022, published online March 25, 2022
It is shown that based on the concept of a toroidal self-gravitating ring vortex with a swirl (with an orbital motion along the torus generatrix), it is possible to explain all the main morphological features of the famous Hoag ring galaxy, including the still unexplained rotation of the central elliptical galaxy. The astronomical observations can be used, thus, to study complex vortex motions*.
Key words: swirling ring vortex, self-gravitating vortex, vortex model of Hoag’s object, merging of galaxies, central galaxy in the ring field.