CAOSP abstracts, Volume: 51, No.: 3, year: 2021

Author(s): Kuznetsov, E.; Al-Shiblawi, O.; Gusev, V.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 51, no. 3, p. 226-240.
Date: 12/2021
Title: Dynamic evolution of pairs of trans-Neptunian objects: the case of binary and single objects in pair
Keyword(s): Trans-Neptunian objects, Classical Kuiper belt objects, celestial mechanics
Pages: 226 -- 240
DOI: https://doi.org/10.31577/caosp.2021.51.3.226
NASA ADS Abstract Service: 2021CoSka..51..226K
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: We performed a search for pairs of trans-Neptunian objects in close orbits with semi-major axes of more than 30 AU. Distances in the space of Keplerian orbits were estimated using the Kholshevnikov metrics. Found 21 pairs of trans-Neptunian objects in which one of the components is binary, for Kholshevnikov metrics in five-dimensional space of Keplerian orbits less than 0.121 AU^1/2. All pairs belong to cold Classical Kuiper belt objects. Based on nominal orbits, the dynamic evolution of pairs of trans-Neptunian objects in the past 10 Myr has been studied numerically. We searched for low relative-velocity close encounters between trans-Neptunian objects in pairs as well as the minima of the Kholshevnikov metrics and the convergence of the lines of nodes and apses, to estimate the age of the pairs.