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Related papers: A Dedicated Lunar Trojan Asteroid Survey with Smal…

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Trojan asteroids are minor planets that share the orbit of a planet about the Sun and librate around the L4 or L5 Lagrangian points of stability. They are important solar-system fossils because they carry information on early Solar System…

Earth and Planetary Astrophysics · Physics 2012-04-27 M. Todd , P. Tanga , D. M. Coward , M. G. Zadnik

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

Trojan asteroids are minor planets that share the orbit of a planet about the Sun and librate around the L4 or L5 Lagrangian points of stability. They are important because they carry information on early Solar System formation, when…

Earth and Planetary Astrophysics · Physics 2012-12-04 M. Todd , D. M. Coward , M. G. Zadnik

Earth Trojan Asteroids are an important but elusive population that co-orbit with Earth at the L4 and L5 Lagrange points. There is only one known, but a large population is theoretically stable and could provide insight into our solar…

Earth and Planetary Astrophysics · Physics 2021-06-28 Noah Lifset , Nathan Golovich , Eric Green , Robert Armstrong , Travis Yeager

Observational searches for asteroids orbiting near Earth's triangular Lagrange points face unique obstacles. A population of such asteroids would occupy a large projected area on the sky (possibly hundreds of square degrees) and is not…

Astrophysics · Physics 2009-10-31 Paul Wiegert , Kimmo Innanen , Seppo Mikkola

Trojan asteroids are minor planets that share the orbit of a planet about the Sun and librate around the L4 or L5 Lagrangian points of stability. Although only three Mars Trojans have been discovered, models suggest that at least ten times…

Earth and Planetary Astrophysics · Physics 2012-07-10 M. Todd , P. Tanga , D. M. Coward , M. G. Zadnik

Co-orbital objects, also known as trojans, are frequently found in simulations of planetary system formation. In these configurations, a planet shares its orbit with other massive bodies. It is still unclear why there have not been any…

Earth and Planetary Astrophysics · Physics 2024-07-08 O. Balsalobre-Ruza , J. Lillo-Box , D. Barrado , A. Correia , J. P. Faria , P. Figueira , A. Leleu , P. Robutel , N. Santos , E. Herrero-Cisneros

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

Co-orbital bodies are the byproduct of planet formation and evolution, as we know from the Solar System. Although planet-size co-orbitals do not exists in our planetary system, dynamical studies show that they can remain stable for long…

Most co-orbital objects in the Solar system are thought to follow tadpole-type orbits, behaving as Trojans. However, most of Earth's identified co-orbitals are moving along horseshoe-type orbits. The current tally of minor bodies considered…

Earth and Planetary Astrophysics · Physics 2020-07-08 Murat Kaplan , Sergen Cengiz

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

The focus of this work is the current distribution of asteroids in co-orbital motion with Venus, Earth and Jupiter, under a quasi-coplanar configuration and for a medium-term timescale of the order of 900 years. A co-orbital trajectory is a…

Earth and Planetary Astrophysics · Physics 2022-11-16 Sara Di Ruzza , Alexandre Pousse , Elisa Maria Alessi

Trojans are circumstellar bodies that reside in characteristic 1:1 orbital resonances with planets. While all the trojans in our Solar System are small (< ~100 km), stable planet-size trojans may exist in extrasolar planetary systems, and…

Earth and Planetary Astrophysics · Physics 2015-06-16 Markus Janson

Jupiter has nearly 8000~known co-orbital asteroids orbiting in the L4 and L5 Lagrange points called Jupiter Trojan asteroids. Aside from the greater number density of the L4 cloud the two clouds are in many ways considered to be identical.…

Earth and Planetary Astrophysics · Physics 2021-01-13 A. McNeill , N. Erasmus , D. E. Trilling , J. P. Emery , J. L. Tonry , L. Denneau , H. Flewelling , A. Heinze , B. Stalder , H. J. Weiland

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

While most near-Earth asteroids (NEAs) are thought to originate from the main belt, recent discoveries have suggested the existence of a lunar-derived NEA population, such as the asteroids Kamo'oalewa and 2024 PT5. These objects may hold…

Earth and Planetary Astrophysics · Physics 2026-02-03 Yixuan Wu , Yifei Jiao , Wen-Yue Dai , Yukun Huang , Zihan Liu , Bin Cheng , Hexi Baoyin , Junfeng Li

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

We report on the discovery of new Martian Trojans within the Minor Planet Center list of asteroids. Their orbital evolution over 10^8 yr shows characteristic signatures of dynamical longevity (Scholl et al, 2005) while their average orbits…

Earth and Planetary Astrophysics · Physics 2015-06-15 Apostolos A. Christou

Asteroids with satellites are natural laboratories to constrain the formation and evolution of our solar system. The binary Trojan asteroid (624) Hektor is the only known Trojan asteroid to possess a small satellite. Based on W.M. Keck…

Earth and Planetary Astrophysics · Physics 2014-03-03 F. Marchis , J. Durech , J. Castillo-Rogez , F. Vachier , M. Cuk , J. Berthier , M. H. Wong , P. Kalas , G. Duchene , M. A. van Dam , H. Hamanowa , M. Viikinkoski

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
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