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Related papers: Orbital Stability of Earth Trojans

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The stability of Trojan type orbits around Neptune is studied. As the first part of our investigation, we present in this paper a global view of the stability of Trojans on inclined orbits. Using the frequency analysis method based on the…

Earth and Planetary Astrophysics · Physics 2015-05-13 Li-Yong Zhou , Rudolf Dvorak , Yi-Sui Sun

We aim to locate the stability region for Uranus Trojans (UT hereafter) and find out the dynamical mechanisms responsible for the structures in the phase space. Using the spectral number as the stability indicator, we construct the…

Earth and Planetary Astrophysics · Physics 2020-02-04 Lei Zhou , Li-Yong Zhou , Rudolf Dvorak , Jian Li

Recently the first Earth Trojan has been observed (Mainzer et al., ApJ 731) and found to be on an interesting orbit close to the Lagrange point L4 (Connors et al., Nature 475). In the present study we therefore perform a detailed…

Earth and Planetary Astrophysics · Physics 2015-06-04 Rudolf Dvorak , Christoph Lhotka , Liyong Zhou

In a previous paper, we have presented a global view of the stability of Neptune Trojan (NT hereafter) on inclined orbit. We discuss in this paper the dependence of stability of NT orbits on the eccentricity. High-resolution dynamical maps…

Earth and Planetary Astrophysics · Physics 2015-05-19 Li-Yong Zhou , Rudolf Dvorak , Yi-Sui Sun

The long-standing co-orbital asteroids have been thought to be the possible source of zodiacal dust ring around the orbit of Venus, but inconsistent conclusions on the orbital stability thus existence of Venus Trojans are found in…

Earth and Planetary Astrophysics · Physics 2022-10-19 Yang-Bo Xu , Lei Zhou , Christoph Lhotka , Li-Yong Zhou , Wing-Huen Ip

The area of stable motion for fictitious Trojan asteroids around Uranus' equilateral equilibrium points is investigated with respect to the inclination of the asteroid's orbit to determine the size of the regions and their shape. For this…

Earth and Planetary Astrophysics · Physics 2015-05-14 Rudolf Dvorak , Ákos Bazsó , Li-Yong Zhou

Previous work has demonstrated orbital stability for 100 Myr of initially near-circular and coplanar small bodies in a region termed the 'Earth-Mars belt' from 1.08 au $< a <$ 1.28 au. Via numerical integration of 3000 particles, we studied…

Earth and Planetary Astrophysics · Physics 2020-10-14 Yukun Huang , Brett Gladman

Ensembles of in-plane and inclined orbits in the vicinity of the Lagrange points of the terrestrial planets are integrated for up to 100 million years. The integrations incorporate the gravitational effects of Sun and the eight planets…

Astrophysics · Physics 2009-10-31 S. A. Tabachnik , N. W. Evans

Applying the technique of dynamical maps we study the orbital stability of test particles in the Solar System in the space (a,e,i) defined by 0.1<a<38 au, 0<e<0.9 and 0<i<180 identifying the unstable and stable regions. We find stable…

Earth and Planetary Astrophysics · Physics 2019-05-29 Tabare Gallardo

Due to their strong resonances with their host planet, Trojan asteroids can remain in stable orbits for billions of years. As a result, they are powerful probes for constraining the dynamical and chemical history of the solar system.…

Earth and Planetary Astrophysics · Physics 2022-04-22 Kevin J. Napier , Larissa Markwardt , Fred C. Adams , David W. Gerdes , Hsing Wen Lin

We investigate the long-term dynamical survival of Earth co-orbital asteroids, focusing on near-circular, near-planar orbits which existing studies suggest are the most stable. Through numerical integration of test particles we show that…

Earth and Planetary Astrophysics · Physics 2021-09-01 Apostolos A. Christou , Nikolaos Georgakarakos

We study the spatial circular restricted problem of three bodies in the light of Nekhoroshev theory of stability over large time intervals. We consider in particular the Sun-Jupiter model and the Trojan asteroids in the neighborhood of the…

Astrophysics · Physics 2009-10-31 Ch. Skokos , A. Dokoumetzidis

In the spatial circular restricted three-body problem librational motion around the Lagrangian points $L_4$ and $L_5$ exists up to high inclinations of the massless object. We report the results of numerical investigations on the stability…

Earth and Planetary Astrophysics · Physics 2017-08-10 Ákos Bazsó , Richard Schwarz , Bálint Érdi , Barbara Funk

All the Trojan asteroids orbit about the Sun at roughly the same heliocentric distance as Jupiter. Differences in the observed visible reflection spectra range from neutral to red, with no ultra-red objects found so far. Given that the…

Astrophysics · Physics 2008-01-17 M. D. Melita , J. Licandro , Jones , D. C. , I. P. Williams

The Earth Trojans are co-orbitals librating around the Lagrange points $L_4$ or $L_5$ of the Sun-Earth system. Although many numerical studies suggest that they can maintain their dynamical status and be stable on timescales up to a few…

Earth and Planetary Astrophysics · Physics 2021-12-01 Man-To Hui , Paul A. Wiegert , David J. Tholen , Dora Föhring

The complex classification of trans-Neptunian objects (TNOs) that are captured in mean-motion resonances (MMRs) and the constraint of their multiple origins are two significant open problems concerning the Solar System. The case-by-case…

Earth and Planetary Astrophysics · Physics 2023-09-13 Alan J. Alves-Carmo , Timothée Vaillant , Alexandre C. M. Correia

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…

Astrophysics · Physics 2008-11-18 Li-Yong Zhou , Rudolf Dvorak , Yi-Sui Sun

We find an interesting fact that fictitious retrograde co-orbitals of Saturn, or small bodies inside the retrograde 1:1 resonance with Saturn, are highly unstable in our numerical simulations. It is shown that in the presence of Jupiter,…

Earth and Planetary Astrophysics · Physics 2019-07-31 Yukun Huang , Miao Li , Junfeng Li , Shengping Gong

The planetary dynamics of $4/3$, $3/2$, $5/2$, $3/1$ and $4/1$ mean motion resonances is studied by using the model of the general three body problem in a rotating frame and by determining families of periodic orbits for each resonance.…

Earth and Planetary Astrophysics · Physics 2017-02-10 K. I. Antoniadou , G. Voyatzis

Jupiter Trojan asteroids are located around L4 and L5 Lagrangian points on relatively stable orbits, in 1:1 MMR with Jupiter. However, not all of them lie in orbits that remain stable over the age of the Solar System. Unstable zones allow…

Earth and Planetary Astrophysics · Physics 2018-11-02 Romina P. Di Sisto , Ximena S. Ramos , Tabaré Gallardo
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