Dynamics around equilibrium points of uniformly rotating asteroids

Jinglang Feng, Xiyun Hou

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Using tools such as periodic orbits and invariant manifolds, the global dynamics around equilibrium points (EPs) in a rotating second-order and degree gravitational field are studied. For EPs on the long axis, planar and vertical periodic families are computed, and their stability properties are investigated. Invariant manifolds are also computed, and their relation to the first-order resonances is briefly discussed. For EPs on the short axis, planar and vertical periodic families are studied, with special emphasis on the genealogy of the planar periodic families. Our studies show that the global dynamics around EPs are highly similar to those around libration points in the circular restricted three-body problem, such as spatial halo orbits, invariant manifolds, and the genealogy of planar periodic families.
Original languageEnglish
Number of pages14
JournalAstronomical Journal
Issue number1
Publication statusPublished - 23 Jun 2017


  • instabilities
  • numerical methods
  • minor planets
  • asteroids

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