Other
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.6201r&link_type=abstract
American Astronomical Society, DPS meeting #41, #62.01
Other
Scientific paper
The formation and evolution of binary Kuiper belt objects (KBOs) is closely intertwined with the history of the outer solar system. The interpretation of the currently observed characteristics of these binaries, however, must include an understanding of effects that can significantly modify their orbital properties over the age of the solar system. Two major sources of potential modification are tides and solar perturbations. We will describe the results of a new self-consistent orbital evolution model that accounts for tidal dissipation at arbitrary eccentricity, the importance of Kozai cycles induced by the Sun, and orbital precession due to non-hydrostatic asymmetries of small solid bodies. With our more realistic model that accounts for aspherical KBOs, we concur with Perets & Naoz 2009 (ApJ, 699, L17) that Kozai Cycles with Tidal Friction (KCTF) can significantly shrink the orbits of KBO binaries and may produce systems that would otherwise appear to be formed by collisions, with the Orcus-Vanth binary as the primary example. Finally, we will discuss the unique observational signatures of KCTF in light of current and future observations.
Brown Michael E.
Ragozzine Darin
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