The dynamics of Centaurs in the vicinity of the 2:1 mean motion resonance of Neptune and Uranus Trojan region

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.

[img]
Preview
Text (Accepted Version)
CentaursJeremy.pdf

Download (387Kb) | Preview

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.


Statistics for USQ ePrint 28888
Statistics for this ePrint Item
Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
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

Actions (login required)

View Item Archive Repository Staff Only