Abstract
From a comparison of the 2:1 and 3:2 resonances (in the asteroidal belt) two possible explanations to the absence of 3:2 apocentric librators are suggested. The first one is that such 3:2 resonant motion is dynamically unstable. The second interpretation requires the absence of nearcircular orbits originally at 4 AU. The latter view, if correct, is inconsistent with cosmogonic models which predict the original orbits of the asteroids to be nearly circular.
References
Alfvén, H. and Arrhenius, G.: 1975,Origin and Evolution of the Solar system, D. Reidel Publishing Co., Dordrecht, Holland.
Brown, E. W.: 1912, “On Librations in Planetary and Satellite Systems”,Monthly Notices Roy. Astron. Soc. 72, 609–630.
Franklin, F. A., Marsden, B. G., Williams, J. G., and Bardwell, C. M.: 1975,Astron. J. 80, 729–746.
Ip, W.-H.: 1976a, ‘On the Collisional Origin of the Kirkwood Gaps and Some Related Problems’, submitted toIcarus.
Ip, W.-H.: 1976b, ‘Dynamical Study of the Hilda Asteroids. I. The Resonant Orbital Motions of the PLS Objects from Palomar-Leiden Survey’,Astrophys. Space Sci. (in press).
Ip, W.-H.: 1976c, ‘A Note on the Cosmogony of the Asteroidal Belt’, submitted toAstrophys. Space Sci.
Schubart, J.: 1968,Astron. J. 73, 99–103.
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IP, W.H. The strange case of the missing apocentric librators in the 3:2 resonance. Astrophys Space Sci 42, L1–L3 (1976). https://doi.org/10.1007/BF00645552
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DOI: https://doi.org/10.1007/BF00645552