Kirkwood Gaps and stability of conservative periodic systems

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 1978 English Publisher:Springer Science and Business Media LLCJournal:Nature, volume 273, pages 734-736 (issn: 0028-0836, eissn: 1476-4687,

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Authors: T. KIANG;

doi: 10.1038/273734a0

Kirkwood Gaps and stability of conservative periodic systems

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Abstract

KIRKWOOD GAPS1 are gaps in the distribution of mean motion of asteroids at the multiples 2/1, 5/2, 3/1 and so on, of Jupiter's mean motion; but at the value 3/2, there is actually a concentration. Figure 1 shows the distribution of the best-determined orbits in the (semi-major axis, eccentricity)- or (a, e)-plane around the 2/1 resonance (the Hecuba Gap) and the 3/2 resonance (the Hilda Group). The sharp contrast between the two cases, especially in the eccentricity range 0.15

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