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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

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

The Jovian Trojans are two swarms of small objects that share Jupiter's orbit, clustered around the leading and trailing Lagrange points, L$_4$ and L$_5$. In this work, we investigate the Jovian Trojan population using the technique of…

Earth and Planetary Astrophysics · Physics 2021-04-07 Timothy R. Holt , Jonathan Horner , David Nesvorný , Rachel King , Marcel Popescu , Brad D. Carter , Christopher C. E. Tylor

Theoretical studies predict that Trojans are likely a frequent byproduct of planet formation and evolution. We present a novel method of detecting Trojan companions to transiting extrasolar planets which involves comparing the time of…

Astrophysics · Physics 2009-11-11 Eric B. Ford , B. Scott Gaudi

Theoretical studies predict that Trojans are likely a frequent byproduct of planet formation and evolution. We examine the sensitivity of transit timing observations for detecting Trojan companions to transiting extrasolar planets. We…

Astrophysics · Physics 2007-07-23 Eric B. Ford , Matthew J. Holman

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

Compared with previous space-borne surveys, the Transiting Exoplanet Survey Satellite (TESS) provides a unique and new approach to observe Solar System objects. While its primary mission avoids the vicinity of the ecliptic plane by…

The only discovery of Earth Trojan 2010 TK$_7$ and the subsequent launch of OSIRIS-REx motive us to investigate the stability around the triangular Lagrange points $L_4$ and $L_5$ of the Earth. In this paper we present detailed dynamical…

Earth and Planetary Astrophysics · Physics 2019-02-06 Lei Zhou , Yang-Bo Xu , Li-Yong Zhou , Rudolf Dvorak , Jian Li

The Neptune Trojans are the most recently discovered population of small bodies in the Solar System. To date, only eight have been discovered, though it is thought likely that the total population at least rivals that of the asteroid belt.…

Earth and Planetary Astrophysics · Physics 2012-03-02 Jonathan Horner , Patryk Sofia Lykawka

The organization of the orbits of most minor bodies in the Solar system seems to follow random patterns, the result of billions of years of chaotic dynamical evolution. Much as heterogeneous orbital behaviour is ubiquitous, dynamically…

Earth and Planetary Astrophysics · Physics 2017-12-08 C. de la Fuente Marcos , R. de la Fuente Marcos

We present a study of Jovian Trojan objects detected serendipitously during the course of a sky survey conducted at the University of Hawaii 2.2-meter telescope. We used a 8192 x 8192 pixel charge-coupled device (CCD) mosaic to observe 20…

Astrophysics · Physics 2009-10-31 D. C. Jewitt , C. A. Trujillo , J. X. Luu

Jovian co-orbitals share Jupiter's orbit in 1:1 mean motion resonance. This includes $>$10,000 so-called Trojan asteroids surrounding the leading (L4) and trailing (L5) Lagrange points, viewed as stable groups dating back to planet…

Earth and Planetary Astrophysics · Physics 2023-12-12 Sarah Greenstreet , Brett Gladman , Mario Juric

It is now accepted that the Solar system's youth was a dynamic and chaotic time. The giant planets migrated significant distances to reach their current locations, and evidence of that migration's influence on the Solar system abounds. That…

Earth and Planetary Astrophysics · Physics 2013-02-12 Jonathan Horner , F. Elliott Koch , Patryk Sofia Lykawka

We present a series of numerical integrations of observed and fictitious Jupiter Trojan asteroids, under the gravitational effects of the four outer planets, for time-spans comparable with the age of the Solar System. From these results we…

Earth and Planetary Astrophysics · Physics 2016-04-20 Romina P. Di Sisto , Ximena S. Ramos , Cristián Beaugé

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

Following the discovery that asteroid (3753) Cruithne was a coorbital companion of the Earth, a new theory of coorbital motion has been developed whereby planets or satellites can maintain companion objects in the same orbit as themselves.…

Astrophysics · Physics 2007-05-23 F. Namouni , A. A. Christou , C. D. Murray

Context. Trojan asteroids of Mars date from an early phase of solar system evolution. Based on a sample of <10 asteroids, MT distribution has been previously shown to be both asymmetric and inhomogeneous with population evolution dominated…

Earth and Planetary Astrophysics · Physics 2025-05-28 Apostolos A. Christou , Nikos Georgakarakos , Matija Cuk , Aldo Dell'Oro , Andrew Marshall-Lee , Alice Humpage

Large scale simulations of Centaurs have yielded vast amounts of data, the analysis of which allows interesting but uncommon scenarios to be studied. One such rare phenomenon is the temporary capture of Centaurs as Trojans of the giant…

Astrophysics · Physics 2009-11-13 J. Horner , N. Wyn Evans

Specially-designed microlensing searches, some of which have been underway for several years, are sensitive to extrasolar planets orbiting the most common stars in our Galaxy. Microlensing is particularly well-suited to the detection of…

Astrophysics · Physics 2007-05-23 Penny D. Sackett