Abstract
A search for pairs of trans-Neptunian objects in close orbits with semimajor axes of more than 30 AU has been performed. Distances in space of Keplerian orbits were estimated using the Kholshevnikov metrics. We revealed 26 pairs of trans-Neptunian objects with metrics less than 0.07 (AU)1/2. Based on nominal orbits, the dynamic evolution of pairs of trans-Neptunian objects in the past over a time interval of 10 million years has been studied numerically. For the pair 2003 QL91—2015 VA173, a study of probabilistic evolution was carried out in the past over a time interval of 10 million years. Estimates of the age of pairs of trans-Neptunian objects obtained by various methods: analysis of low-speed approaches of objects, convergence of orbits, approaches of lines of nodes and apses, give conflicting results. The age of most of the pairs considered exceeds 10 million years.
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This work was supported by the Ministry of Science and Higher Education of the Russian Federation (project FEUZ-2020-0038).
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Translated by E. Seifina
Based on the materials of the VII Bredikhin Readings (May 2021).
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Kuznetsov, E.D., Al-Shiblawi, O.M. & Gusev, V.D. Dynamic Evolution of Pairs of Trans-Neptunian Objects. Sol Syst Res 56, 122–134 (2022). https://doi.org/10.1134/S003809462202006X
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DOI: https://doi.org/10.1134/S003809462202006X