Kuiper-belt interlopers
Article Abstract:
The greater part of Kuiper belt objects can be divided into two populations, according to their level of dynamic excitability, and eccentricity of orbit. Study of their spectra show that the two groups are statistically different and thus may have different origins. Astronomers have developed a new theory that one population originated in the Kuiper belt, and the other migrated from the region surrounding Neptune.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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Chaotic capture of Jupiter's Trojan asteroids in the early solar system
Article Abstract:
Jupiter's Trojans could have formed in more distant regions and been subsequently captured into co-orbital motion with Jupiter during the time when the giant planets migrated by removing neighboring planetesimals. Jupiter's Trojans are asteroids that follow essentially the same orbit as Jupiter, but lead or trail the planet by an angular distance of approximately 60 degrees.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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Origin of the orbital architecture of the giant planets of the solar system
Article Abstract:
A demonstration that a planetary system with initial quasi-circular, coplanar orbits would have evolved to the current orbital configuration, if Jupiter and Saturn crossed their 1:2 orbital resonance is presented. The results revealed that this resonance crossing could have occurred as the giant planets migrated owing to their interaction with a disk of planetesimals.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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