Survival of Trojan-Type Companions of Neptune During Primordial Planet Migration

Details Survival of Trojan-Type Companions of Neptune During Primordial Planet Migration Survival of Trojan-Type Companions of Neptune During Primordial Planet Migration

2003-05-29

arxiv.org/abs/astro-ph/0305572v1

Astronomy and Astrophysics

Astrophysics

LaTeX file, 26 total pages with 1 table and 11 eps figures. Submitted to Icarus

Scientific paper

10.1016/j.icarus.2003.09.021

We investigate the survivability of Trojan-type companions of Neptune during primordial radial migration of the giant planets Jupiter, Saturn, Uranus, and Neptune. Loss of Neptune Trojans during planetary migration is not a random diffusion process. Rather, losses occur almost exclusively during discrete episodes when Trojan particles are swept by secondary resonances associated with mean-motion commensurabilities of Uranus with Neptune. The single greatest episode of loss ejects nearly 75% of existing Neptune Trojans and occurs just prior to Neptune reaching its final orbit.

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