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  • THE RESONANT TRANS-NEPTUNIA...
    Gladman, B; Lawler, S M; Petit, J-M; Kavelaars, J; Jones, R L; Parker, J Wm; VAN LAERHOVEN, C; Nicholson, P; Rousselot, P; BIERYLA, A; Ashby, M L N

    The Astronomical journal, 07/2012, Letnik: 144, Številka: 1
    Journal Article

    The trans-Neptunian objects (TNOs) trapped in mean-motion resonances with Neptune were likely emplaced there during planet migration late in the giant-planet formation process. This paper discusses the 3:2, 5:2, 2:1, 3:1, 5:1, 4:3, 5:3, 7:3, 5:4, and 7:4 mean-motion resonances, all of which had CFEPS detections, along with our upper limit on 1:1 Neptune Trojans (which is consistent with their small population estimated elsewhere). For the plutinos (TNOs in the 3:2 resonance) we refine the orbital element distribution given by Kavelaars et al. in 2009 and show that steep H-magnitude distributions (N(H) Proportionalto 10 super( alpha H), with alpha = 0.8-0.9) are favored in the range H sub(g) = 8-9, and confirm that this resonance does not share the inclination distribution of the classical Kuiper Belt. We compare our intrinsic population and orbital element distributions with several published models of resonant-TNO production; the most striking discrepancy is that resonances beyond the 2:1 are in reality more heavily populated than in published models.