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Dynamical evolution of near-Sun objects

Published online by Cambridge University Press:  05 January 2015

Vacheslav V. Emel'yanenko
Affiliation:
Institute of Astronomy, Russian Academy of Sciences, 48 Pyatnitskaya str., 119017, Moscow, Russia email: vvemel@inasan.ru, mshelyakov@inasan.ru
Mikhail A. Shelyakov
Affiliation:
Institute of Astronomy, Russian Academy of Sciences, 48 Pyatnitskaya str., 119017, Moscow, Russia email: vvemel@inasan.ru, mshelyakov@inasan.ru
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Abstract

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The dynamical evolution of short-period objects having perihelia at small heliocentric distances is discussed. We have investigated the motion of multiple-apparition members of the Marsden and Kracht sungrazing groups. The orbital evolution of these objects on timescales < 10 Kyr is mainly determined by the Kozai-Lidov secular perturbations. These objects are dynamically connected with high-inclination near-Earth objects. On the other hand, we have found several observed near-Earth objects that evolve in the same way, reaching small perihelion distances on short timescales in the past.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2014 

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