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Resonant trans-Neptunian objects as a source of Jupiter-family comets

Published online by Cambridge University Press:  01 August 2006

E. L. Kiseleva  and
V. V. Emel'yanenko
E. L. Kiseleva
Affiliation:
Department of Computational and Celestial Mechanics, South Ural University, Russia email: kleo@susu.ac.ru
V. V. Emel'yanenko
Affiliation:
Department of Computational and Celestial Mechanics, South Ural University, Russia email: kleo@susu.ac.ru
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Abstract

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The dynamical interrelation between resonant trans-Neptunian objects and short-period comets is studied. Initial orbits of resonant objects are based on computations in the model of the outward transport of objects during Neptune's migration in the early history of the outer Solar system. The dynamical evolution of this population is investigated for 4.5 Gyr, using a symplectic integrator. Our calculations show that resonant trans-Neptunian objects give a substantial contribution to the planetary region. We have estimated that the relative fraction of objects captured per year from the 2/3 resonance to Jupiter-family orbits with perihelion distances q<2.5 AU is 0.4×10−10 near the present epoch.

Keywords

Trans-Neptunian objectscometsresonancesmigration
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S236: Near Earth Objects, our Celestial Neighbors: Opportunity and Risk , August 2006 , pp. 31 - 34
Copyright
Copyright © International Astronomical Union 2007

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