On the Dynamics of Inclined Neptune's Trojans
Li-Yong Zhou (1), Rudolf Dvorak (2), Yi-Sui Sun (1) ((1) Nanjing, University, China, (2) Vienna University, Austria)

TL;DR
This paper studies the stability and chaos of Neptune's Trojan-like asteroids, revealing how initial orbital parameters influence their long-term behavior and identifying a chaotic gap at 45 degrees inclination.
Contribution
It provides a detailed dynamical map of Neptune's Trojans, highlighting the instability at 45 degrees inclination and explaining the chaos mechanism involved.
Findings
Unstable gap at i=45 degrees identified
Dynamical map of (a,i)-plane constructed
Chaos mechanism at specific inclinations explained
Abstract
The dynamics of artificial asteroids on the Trojan-like orbits around Neptune is investigated in this paper. We describe the dependence of the orbital stability on the initial semimajor axis a and inclination i by constructing a dynamical map on the (a,i)-plane. Rich details are revealed in the dynamical map, especially a unstable gap at i=45 deg is determined and the mechanism triggering chaos in this region is figured out. Our investigation can be used to guide the observations.
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Taxonomy
TopicsAstro and Planetary Science · Quantum chaos and dynamical systems · Geology and Paleoclimatology Research
