Numerical simulations of the accretion of Uranus and Neptune

The accretion process of the outer planets was one of the most collective phenomena during the formation of the solar system. From the region of the terrestrial planets up to its outermost boundary, the Oort cloud, the solar system has been strongly influenced by this process (Fernلndez and Gallardo, 1996). Much progress has been done in our understanding of the formation of the outer planets and scattering of the residual mass from the early theoretical research of Safronov, 1972. Nevertheless, there are several aspects not yet understood that deserve further study.