On the Initial Conditions of the Nice Model

Details On the Initial Conditions of the Nice Model On the Initial Conditions of the Nice Model

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.5501b&link_type=abstract

American Astronomical Society, DPS meeting #41, #55.01

Astronomy and Astrophysics

Astronomy

Scientific paper

In the recent years, the "Nice” model of solar system formation has attained an unprecedented level of success in reproducing much of the observed orbital architecture of the Kuiper belt, while evolving the planets to their current locations from a more compact configuration (Tsiaganis et al 2005; Levison et al 2007). Within the context of this model, the formation of the classical Kuiper Belt requires a phase during which the ice giants have a high eccentricity. An outstanding question of this model is the initial condition from which the Solar System started out. Recent work (Morbidelli et al 2007) has shown that multi-resonant initial conditions can serve as good candidates, as they naturally prevent vigorous type-II migration. We performed a large number of self-consisted numerical N-body simulations with an eye towards identification of multi-resonant initial conditions which result in an eccentric phase of the ice giants. The results should prove useful in further development of a comprehensive model for solar system formation.

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