JiangHui Ji1; Lin Liu2
Source Publicationchinesejournalofastronomyandastrophysics
AbstractIt is well-known that the asteroids in the main belt trapped in the 3:1 Mean Motion Resonance (MMR) with Jupiter (at semi-major axes similar to 2.5 AU) are few in number, forming one of the so-called Kirkwood Gaps. Wisdom pointed out that chaotic motion of such asteroids can increase their eccentricities and make them approach and cross the orbit of Mars (or even the Earth). We numerically investigated the orbital evolution of the asteroids involved in 3:1 MMR (NEOs) over millions of years and revisited the dynamical mechanisms of trasporitng such asteroids into the NEO region. The results show that the dynamical evolution of the asteroids around 2.5 AU is mainly dominated by the 3:1 resonance, the v(5) and v(6) secular resonances and the Kozai resonance, and these bodies can evolve into NEOs through several of the dynamical mechanisms, so indicating possible dynamical origin of the NEOs.
Document Type期刊论文
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
JiangHui Ji,Lin Liu. revisitofdynamicalmechanismsoftransportingasteroidsinthe31resonancetothenearearthspace[J]. chinesejournalofastronomyandastrophysics,2007,7(1):148.
APA JiangHui Ji,&Lin Liu.(2007).revisitofdynamicalmechanismsoftransportingasteroidsinthe31resonancetothenearearthspace.chinesejournalofastronomyandastrophysics,7(1),148.
MLA JiangHui Ji,et al."revisitofdynamicalmechanismsoftransportingasteroidsinthe31resonancetothenearearthspace".chinesejournalofastronomyandastrophysics 7.1(2007):148.
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