``Quasi-satellites" around the outer planets

Details ``Quasi-satellites" around the outer planets ``Quasi-satellites" around the outer planets

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.5805i&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #58.05; Bulletin of the American Astronomical Society, Vol. 31, p.1461

Astronomy and Astrophysics

Astronomy

Scientific paper

Bodies in 1:1 mean motion resonance may be in a configuration such that they librate about the longitude of their associated planet. The stability of such bodies, which we call "quasi-satellites", around the planets of the outer Solar System has been investigated. Numerical simulations reveal that test particles can remain on such orbits around Uranus and Neptune for times up to at least 109 yr, though only at low inclinations relative to their accompanying planet and over a restricted range of heliocentric eccentricities. Thus, we conclude that a primordial population of such objects could still exist in the outer Solar System. The authors gratefully acknowledge the support of the Natural Sciences and Engineering Research Council of Canada.

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