Influence of Planetary Encounters on the Magnitude of the Yarkovsky Effect in Asteroid Dynamics

IF 0.6 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Solar System Research Pub Date : 2023-10-02 DOI:10.1134/S0038094623050052

A. A. Martyusheva, A. V. Melnikov

引用次数: 0

Abstract

The influence of the solar radiation pressure and the Yarkovsky effect on the long-term orbital dynamics is estimated for a number of asteroids experiencing successive planetary encounters. The variation in the asteroid’s proper rotation period due to its approach to the planet and its effect on the asteroid’s further orbital dynamics through the Yarkovsky effect is considered. It is shown that close planetary encounters of small asteroids (tens of meters in diameter) with short rotation period (less than 10 h), which change the asteroid’s rotation period by several hours, significantly affect the magnitude of the Yarkovsky effect.

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行星相遇对小行星动力学中亚可夫斯基效应大小的影响

太阳辐射压力和亚可夫斯基效应对长期轨道动力学的影响是针对一些连续遭遇行星的小行星进行估计的。考虑了小行星由于接近行星而导致的自转周期的变化，以及通过亚科夫斯基效应对小行星进一步轨道动力学的影响。研究表明，自转周期短（小于10小时）的小型小行星（直径数十米）的近距离行星相遇会使小行星的自转周期改变几个小时，这会显著影响雅科夫斯基效应的大小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Solar System Research 地学天文-天文与天体物理

CiteScore

1.60

自引率

33.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Solar System Research publishes articles concerning the bodies of the Solar System, i.e., planets and their satellites, asteroids, comets, meteoric substances, and cosmic dust. The articles consider physics, dynamics and composition of these bodies, and techniques of their exploration. The journal addresses the problems of comparative planetology, physics of the planetary atmospheres and interiors, cosmochemistry, as well as planetary plasma environment and heliosphere, specifically those related to solar-planetary interactions. Attention is paid to studies of exoplanets and complex problems of the origin and evolution of planetary systems including the solar system, based on the results of astronomical observations, laboratory studies of meteorites, relevant theoretical approaches and mathematical modeling. Alongside with the original results of experimental and theoretical studies, the journal publishes scientific reviews in the field of planetary exploration, and notes on observational results.