Origin and dynamical evolution of Neptune Trojans

Lykawka, P. S. and Horner, J. A. and Mukai, T. and Jones, B. W. (2008) Origin and dynamical evolution of Neptune Trojans. In: 10th Asteroids, Comets, Meteors Meeting (ACM 2008), 14-18 Jul 2008, Baltimore, MD. United States.

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Abstract

Objects orbiting in the Lagrangian L4 and L5 points – called Trojan objects – lie 60° ahead of and behind a given planet in its orbit. In particular, these objects are of great interest because they can be dynamically stable over billions of years, implying that they carry precious information about the early solar system. The total population of large Neptunian Trojans (diameter > 50km) has been estimated to be at least the same as that of Jupiter Trojans of equivalent size. A total of six Neptune Trojans have been found to date, and they appear to be primordial objects stable over 4Gyr. Surprisingly, two of these objects possess high inclinations within the 25–30° range, thus challenging models of Trojan formation.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: No
Item Status: Live Archive
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 23 Jul 2014 22:57
Last Modified: 04 Sep 2014 05:28
Uncontrolled Keywords: Neptune; space objects; orbit
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
02 Physical Sciences > 0201 Astronomical and Space Sciences > 020108 Planetary Science (excl. Extraterrestrial Geology)
02 Physical Sciences > 0201 Astronomical and Space Sciences > 020104 Galactic Astronomy
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
URI: http://eprints.usq.edu.au/id/eprint/25537

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