WALSH , K. J.

A new terrestrial planet formation model (Walsh et al., this meeting) explores the effects of a two-stage, inward-then-outward migration of Jupiter and Saturn, as found in numerous hydrodynamical simulations of giant planet formation (Masset & Snellgrove 2001, Morbidelli & Crida 2007, Pierens & Nelson 2008). Walsh et al. show that the inward...

Numerical simulations of planetary accretion have succeeded in matching most of the physical and orbital properties of the terrestrial planets with one glaring exception: they categorically form Mars analogs that are roughly an order of magnitude too massive (Raymond et al. 2009). The initial conditions that best reproduce the mass of Mars...

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The recently proposed Grand Tack model (Walsh et al., 2011) couples the gas-driven migration of giant planets to the accretion of terrestrial planets. In this model the first inward and then outward migration of Jupiter and Saturn creates a truncated disk of embryos and planetesimals, the subsequent evolution of which eventually broadly...

The recently proposed Grand Tack model (Walsh et al., 2011) couples the gas-driven migration of giant planets to the accretion of terrestrial planets. In this model the first inward and then outward migration of Jupiter and Saturn creates a truncated disk of embryos and planetesimals, the subsequent evolution of which eventually broadly...

A model of early inner Solar System evolution whereby the gas-driven migration of Jupiter and Saturn truncates the disk of planetesimals and creates a depleted and dynamically excited asteroid belt populated from two parent populations.

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