Orbital evolution and possible parent asteroids of 40 instrumentally observed meteorites

IF 1.8 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Planetary and Space Science Pub Date : 2023-12-08 DOI:10.1016/j.pss.2023.105827

Filip Hlobik, Juraj Tóth

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Abstract

We present the orbital evolution of 40 meteorites with known heliocentric orbits, both nominal and their clones as well. The goal of our work was to determine the stability of their orbits and to find possible connections with known near-Earth asteroids. Stability along with a probability of a random association were used to select probable candidates. We have found stable behaviour of orbits for 21 meteorites in the time interval of 100,000 years to the past (e.g. Neuschwanstein, Jesenice). Twelve meteorites displayed different orbital evolution of the nominal orbit and the clones (e.g. Almahata Sitta, Motopi Pan), but in general they were stable. There were seven meteorites on unstable orbits; 3 meteorites exhibited chaotic clone evolutions (Košice, Maribo and Novato) and 4 were on overall unstable orbits (Příbram, Sutter’s Mill, Flensburg and Arpu Kuilpu). This study suggests possible parent bodies from the currently known NEA population for 27 meteorites with very low $D_{S H}$ values and low probabilities of random association.

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40 颗仪器观测到的陨石的轨道演变和可能的母小行星

我们介绍了 40 颗已知日心轨道的陨石的轨道演变情况，其中既有标称的陨石，也有它们的克隆体。我们的工作目标是确定它们轨道的稳定性，并找到与已知近地小行星的可能联系。稳定性和随机联系的概率被用来选择可能的候选者。我们发现 21 颗陨石在 10 万年到过去的时间间隔内（如新天鹅堡、杰森尼采）轨道表现稳定。有 12 块陨石（如 Almahata Sitta、Motopi Pan）的标称轨道和克隆轨道表现出不同的轨道演变，但总的来说是稳定的。有 7 颗陨石的轨道不稳定；3 颗陨石的克隆演化混乱（科希策、马里博和诺瓦托），4 颗陨石的轨道总体不稳定（普里布拉姆、萨特磨坊、弗伦斯堡和阿尔普-库尔普）。这项研究为 27 个 DSH 值很低和随机关联概率很低的陨石提出了可能的母体，这些母体来自目前已知的近地天体群。

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来源期刊

Planetary and Space Science 地学天文-天文与天体物理

CiteScore

5.40

自引率

4.20%

发文量

126

审稿时长

15 weeks

期刊介绍： Planetary and Space Science publishes original articles as well as short communications (letters). Ground-based and space-borne instrumentation and laboratory simulation of solar system processes are included. The following fields of planetary and solar system research are covered: • Celestial mechanics, including dynamical evolution of the solar system, gravitational captures and resonances, relativistic effects, tracking and dynamics • Cosmochemistry and origin, including all aspects of the formation and initial physical and chemical evolution of the solar system • Terrestrial planets and satellites, including the physics of the interiors, geology and morphology of the surfaces, tectonics, mineralogy and dating • Outer planets and satellites, including formation and evolution, remote sensing at all wavelengths and in situ measurements • Planetary atmospheres, including formation and evolution, circulation and meteorology, boundary layers, remote sensing and laboratory simulation • Planetary magnetospheres and ionospheres, including origin of magnetic fields, magnetospheric plasma and radiation belts, and their interaction with the sun, the solar wind and satellites • Small bodies, dust and rings, including asteroids, comets and zodiacal light and their interaction with the solar radiation and the solar wind • Exobiology, including origin of life, detection of planetary ecosystems and pre-biological phenomena in the solar system and laboratory simulations • Extrasolar systems, including the detection and/or the detectability of exoplanets and planetary systems, their formation and evolution, the physical and chemical properties of the exoplanets • History of planetary and space research