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叶安琪, 蔡梓哲, 陈正涵, 刘晓东. 木星不规则卫星区域内的尘埃轨道动力学演化特性[J]. 深空探测学报(中英文), 2024, 11(1): 90-99. DOI: 10.15982/j.issn.2096-9287.2024.20230096
引用本文: 叶安琪, 蔡梓哲, 陈正涵, 刘晓东. 木星不规则卫星区域内的尘埃轨道动力学演化特性[J]. 深空探测学报(中英文), 2024, 11(1): 90-99. DOI: 10.15982/j.issn.2096-9287.2024.20230096
YE Anqi, CAI Zizhe, CHEN Zhenghan, LIU Xiaodong. Orbital Dynamics of Dust Particles in the Region of the Jovian Irregular Moons[J]. Journal of Deep Space Exploration, 2024, 11(1): 90-99. DOI: 10.15982/j.issn.2096-9287.2024.20230096
Citation: YE Anqi, CAI Zizhe, CHEN Zhenghan, LIU Xiaodong. Orbital Dynamics of Dust Particles in the Region of the Jovian Irregular Moons[J]. Journal of Deep Space Exploration, 2024, 11(1): 90-99. DOI: 10.15982/j.issn.2096-9287.2024.20230096

木星不规则卫星区域内的尘埃轨道动力学演化特性

Orbital Dynamics of Dust Particles in the Region of the Jovian Irregular Moons

  • 摘要: 木星的不规则卫星在行星际流星体的撞击下,表面会喷发出大量的尘埃粒子。考虑多种摄动力并存的复杂木星系空间环境,采用解析法和数值仿真法相结合的方式,研究了起源于木星系不规则卫星的尘埃粒子在木星不规则卫星区域的轨道动力学演化特性。通过对描述尘埃长期运动演化的轨道平均模型中有效哈密顿守恒量及相图进行分析,可以得到源于顺行卫星的尘埃更多分布在远离太阳的一侧,而源于逆行卫星的尘埃则更多分布在朝向太阳的一侧。对尘埃演化的长期数值仿真可以发现,源于顺行卫星的尘埃轨道比逆行卫星的尘埃轨道更为稳定,并且较大的尘埃颗粒的轨道稳定性更高。

     

    Abstract: A lot of dust particles are ejected from the surfaces of the Jovian irregular moons by the impact of interplanetary meteoroids. In this paper, the dynamics of dust particles originating from the irregular satellites in the complicated Jupiter system with various perturbation forces were studied, using both the analytical method and the numerical simulation method. By analyzing the conserved effective Hamiltonian quantity and phase portraits in the orbit-averaged model that describes the long-term evolution of motion of dust, it is concluded that dust particles originating from the prograde satellites tend to be distributed in the direction away from the Sun, while dust particles originating from the retrograde satellite are predominantly distributed in the direction towards the Sun. With long-term numerical simulation, it is found that the orbits of particles originating from prograde satellites are more stable than those of particles originating from retrograde satellites, and the orbital stabilities of large-size dust particles are greater than those of small-size particles.

     

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