Rapid dynamical evolution of giant Comet Chiron

Details Rapid dynamical evolution of giant Comet Chiron Rapid dynamical evolution of giant Comet Chiron

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.348..132h&link_type=abstract

Nature (ISSN 0028-0836), vol. 348, Nov. 8, 1990, p. 132-136.

Physics

71

Chiron, Comets, Orbital Mechanics, Planetary Evolution, Solar Orbits, Albedo, Cometary Atmospheres, Orbit Perturbation, Taurid Meteoroids

Scientific paper

Numerical simulation of orbits like that of the giant Comet Chiron show a distinct asymmetry between past and future. Simulations extending + or - 100,000 years from the present suggest that on this timescale, Chiron is about twice as likely to have been a short-period comet at some time in the past as to become one in the future. The mean half-life for such evolution is about 0.2 Myr, much less than the approximately 1-Myr lifetime for ejection from the solar system, implying that Chiron may have been a short-period comet in the past, and will probably become one in the future.

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