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Dynamics of “jumping” Trojans: a perturbative treatment

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The term “jumping” Trojan was introduced by Tsiganis et al. (Astron Astrophys 354:1091–1100, 2000) in their studies of long-term dynamics exhibited by the asteroid (1868) Thersites, which had been observed… Click to show full abstract

The term “jumping” Trojan was introduced by Tsiganis et al. (Astron Astrophys 354:1091–1100, 2000) in their studies of long-term dynamics exhibited by the asteroid (1868) Thersites, which had been observed to jump from librations around $$L_4$$L4 to librations around $$L_5$$L5. Another example of a “jumping” Trojan was found by Connors et al. (Nature 475:481–483, 2011): librations of the asteroid 2010 TK7 around the Earth’s libration point $$L_4$$L4 preceded by its librations around $$L_5$$L5. We explore the dynamics of “jumping” Trojans under the scope of the restricted planar elliptical three-body problem. Via double numerical averaging we construct evolutionary equations, which allow analyzing transitions between different regimes of orbital motion.

Keywords: librations around; astronomy; dynamics jumping; jumping trojans; perturbative treatment; trojans perturbative

Journal Title: Celestial Mechanics and Dynamical Astronomy
Year Published: 2018

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