2060 Chiron - Chaotic Dynamical Evolution and its Implications

• Autorzy: Gabryszewski R.
• Języki publikacji: EN

Abstrakty

EN

2060 Chiron - one of the Centaurs orbiting chaotically among the giant planets - is treated as an asteroid and a comet (95P/Chiron) as well. Since the day of the discovery many papers have discussed its past and future fate. In this paper a possibility of Chiron's dynamical evolution to different cometary orbital types is studied. An ensemble of orbital elements was used to describe Chiron's dynamics in terms of probability. The ensemble was generated using a unique scheme of elements creation. Dispersion of elements obtained by this method is much smaller compared to ranges obtained by varying the original elements in the ellipsoid of their mean errors. The chaos in Chiron's dynamical evolution can be seen in 5 to 9 kyrs, although the dispersion of orbital elements is small. Halley type orbits are the rarest noticed orbital types but the number of these objects is three times greater than the number of apparent Halley type comets. The variations of probability of different cometary orbits as a function of time is also presented. The rate of HTC orbit production is only four times lower than the production rate of JFCs after the first 50 kyrs of integration. Remarks on the small body transportation mechanisms are also included.

Słowa kluczowe

EN

minor planets; asteroids; comets: general; celestial mechanics

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2002
• Tom: Vol. 52, No. 3
• Strony: 305--216
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.

Twórcy

autor

Gabryszewski R.

• Space Research Centre, ul. Bartycka 18A, 00-716 Warszawa, Poland

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