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Dynamical evolution of comets from high-eccentricity trans-Neptunian orbits to near-Earth space

Published online by Cambridge University Press:  28 February 2005

Vacheslav V. Emel'yanenko
Affiliation:
Department of Computational and Celestial Mechanics, South Ural University, Lenina 76, Chelyabinsk 454080, Russia email: [email protected]
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Abstract

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The contribution of high-eccentricity trans-Neptunian objects to the observed populations of both short-period and long-period comets is estimated. About $10^{10}$ objects with a radius $R>0.7$ km in orbits with perihelion distances $28<q<35.5$ AU and semimajor axes $60<a<1000$ AU are the main source of Jupiter-family comets. If the population of high-eccentricity trans-Neptunian objects formed about 4.5 Gyr ago, the mean near-parabolic flux produced by these objects is on the order of 0.3-1.0 AU$^{-1}$ yr$^{-1}$ for comets with $R>0.7$ km.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Copyright
© 2005 International Astronomical Union