Dynamical Instabilities and the High Orbital Inclinations of Many Classical Kuiper Belt Objects

Details Dynamical Instabilities and the High Orbital Inclinations of Many Classical Kuiper Belt Objects Dynamical Instabilities and the High Orbital Inclinations of Many Classical Kuiper Belt Objects

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000dps....32.2103k&link_type=abstract

American Astronomical Society, DPS Meeting #32, #21.03; Bulletin of the American Astronomical Society, Vol. 32, p.1031

Astronomy and Astrophysics

Astronomy

Scientific paper

Though most surveys for Kuiper Belt Objects (KBOs) are strongly biased against discovering objects with high orbital inclinations, ~ 15% of known classical KBOs appear to have orbital inclinations greater than 15o. We numerically integrated the orbits of 1100 particles in the region of the classical Kuiper Belt (42 AU <= a <= 47 AU) for 4 billion years to explore the role of dynamical instability in sculpting the inclination distribution of classical KBO orbits. The simulations show that in certain ranges of semi-major axis and eccentricity, dynamical intabilities preferentially deplete low-inclination objects, suggesting that long-term dynamical effects are part of the explanation for surprising fraction of observed KBOs with high orbital inclinations.

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