Wood, Jeremy and Horner, Jonathan (2015) The dynamics of Centaurs in the vicinity of the 2:1 mean motion resonance of Neptune and Uranus Trojan region. In: 14th Australian Space Research Conference (ASRC 2014), 29 Sept - 1 Oct 2014, Adelaide, Australia.
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Abstract
In this work we present the results of a suite of dynamical simulations following the orbital evolution of 8,022 hypothetical Centaur objects. These Centaurs begin our integrations on orbits in the vicinity of the 2:1 mean motion resonance with Neptune, and we follow their dynamical evolution for a period of 3 Myr under the gravitational influence of a motionless Sun and the four Jovian planets. The great majority of the test particles studied rapidly escaped from the vicinity of the 2:1 mean motion resonance of Neptune and diffused throughout the Solar System. The average libration time of Centaurs in the vicinity of 2:1 mean motion resonance of Neptune was found to be just 27 kyr. Although two particles did remain near the resonance for more than 1 Myr. Upon leaving the vicinity of the 2:1 resonance, the majority of test particles evolved by a process of random walk in semi-major axis, due to repeated close encounters with the giant planets.
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| Item Type: | Conference or Workshop Item (Commonwealth Reporting Category E) (Paper) |
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| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Copyright © 2015 National Space Society of Australia Ltd. No evidence of copyright restrictions preventing deposit of Accepted version. |
| Faculty / Department / School: | Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences |
| Date Deposited: | 23 Jun 2016 23:03 |
| Last Modified: | 15 Sep 2017 02:47 |
| Uncontrolled Keywords: | centaurs; celestial mechanics: mean motion resonances; methods: n-body simulations; Uranus Trojans; comets |
| 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) |
| URI: | http://eprints.usq.edu.au/id/eprint/28888 |
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