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Related papers: An optimal Mars Trojan asteroid search strategy

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Of the four giant planets in the Solar system, only Jupiter and Neptune are currently known to possess swarms of Trojan asteroids - small objects that experience a 1:1 mean motion resonance with their host planet. In Lykawka et al. (2009),…

Earth and Planetary Astrophysics · Physics 2011-10-11 P. S. Lykawka , J. Horner

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

Mars was second to Jupiter in being recognized as the host of a population of Trojan minor bodies. Since 1990, five asteroids - 5261 Eureka, (101429) 1998 VF31, (121514) 1999 UJ7, 2001 DH47 and (311999) 2007 NS2 - have been identified as…

Earth and Planetary Astrophysics · Physics 2013-05-28 C. de la Fuente Marcos , R. de la Fuente Marcos

The existence of Earth's Trojan asteroids is not well constrained and represents a major gap in our inventory of small bodies in near-Earth space. Their discovery would be of high scientific and human interest.

Earth and Planetary Astrophysics · Physics 2019-03-06 Renu Malhotra

We present an analysis of survey observations of the trailing L5 Jupiter Trojan swarm using the wide-field Hyper Suprime-Cam CCD camera on the 8.2 m Subaru Telescope. We detected 189 L5 Trojans from our survey that covered about 15 deg^2 of…

Earth and Planetary Astrophysics · Physics 2022-04-20 Kotomi Uehata , Tsuyoshi Terai , Keiji Ohtsuki , Fumi Yoshida

The detection of Earth-like planets, exocomets or Kuiper belts show that the different components found in the solar system should also be present in other planetary systems. Trojans are one of these components and can be considered fossils…

Earth and Planetary Astrophysics · Physics 2018-01-24 J. Lillo-Box , D. Barrado , P. Figueira , A. Leleu , N. C. Santos , A. C. M. Correia , P. Robutel , J. P. Faria

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

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 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

The Trojan asteroids orbit about the Lagrangian points of Jupiter and the residence times about their present location are very long for most of them. If these bodies originated in the outer Solar System, they should be mainly composed of…

Earth and Planetary Astrophysics · Physics 2015-05-13 M. D. Melita , G. Strazzulla , A. Bar-Nun

We have searched Microvariability and Oscillations of STars (MOST) satellite photometry obtained in 2004, 2005, and 2007 of the solar-type star HD 209458 for Trojan asteroid swarms dynamically coupled with the system's transiting "hot…

Solar and Stellar Astrophysics · Physics 2010-05-20 Reka Moldovan , Jaymie M. Matthews , Brett Gladman , William F. Bottke , David Vokrouhlicky

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

[abridged] We carry out numerical simulations to gauge the Gaia potential for precision astrometry of exoplanets orbiting a sample of known dM stars within 30 pc from the Sun. (1) It will be possible to accurately determine orbits and…

Earth and Planetary Astrophysics · Physics 2015-06-17 A. Sozzetti , P. Giacobbe , M. G. Lattanzi , G. Micela , R. Morbidelli , G. Tinetti

We observed the Mars Trojan asteroids (5261) Eureka and (101429) 1998 VF31 and the candidate Mars Trojan 2001 FR127 at 11.2 and 18.1 microns using Michelle on the Gemini North telescope. We derive diameters of 1.28, 0.78, and <0.52 km,…

Astrophysics · Physics 2009-11-13 D. E. Trilling , A. S. Rivkin , J. A. Stansberry , T. B. Spahr , R. A. Crudo , J. K. Davies

The 2013 Planetary Science Decadal Survey identified a detailed investigation of the Trojan asteroids occupying Jupiter's L4 and L5 Lagrange points as a priority for future NASA missions. Observing these asteroids and measuring their…

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 objects share a planet's orbit, never straying far from the triangular Lagrangian points, 60 degrees ahead of (L4) or behind (L5) the planet. We report the detection of a Uranian Trojan; in our numerical integrations, 2011 QF99…

Earth and Planetary Astrophysics · Physics 2013-09-02 Mike Alexandersen , Brett Gladman , Sarah Greenstreet , JJ Kavelaars , Jean-Marc Petit , Stephen Gwyn

Aim. We construct a new arc model to represent the global perturbation induced by the Jupiter Trojans for the development of the modern planetary ephemerides. Methods. The Jupiter Trojans are divided into two groups: (1) the 226 biggest…

Earth and Planetary Astrophysics · Physics 2018-08-22 Jian Li , Yi-Sui Sun

The origin of the Jupiter Trojan asteroids has long been a mystery. Dynamically, the population, which is considerably smaller than the main asteroid belt, librates around Jupiter's stable L4 and L5 Lagrange points, 60 deg ahead and behind…

Earth and Planetary Astrophysics · Physics 2023-12-06 William F. Bottke , Raphael Marschall , David Nesvorný , David Vokrouhlický