Formation of Solar System Analogues: from the gaseous protoplanetary disk to the final stage of giant impacts

RONCO, M. P.; DE ELÍA, G. C.

Heidelberg

Conferencia; Planetary Dynamics Conference; 2019

Max Planck Institute

We present results on the formation and evolution of Solar SystemAnalogues (SSA) and water delivery on to the rocky planets formed within their habitable zones. To find suitable initial conditions to form SSA, we first developed a planetary population synthesis analysis by improving a model of planet formation that studies the evolution of a planetary system during the gaseous phase. The results of this analysis provided us with embryo distributions, planetesimal surfacedensity, eccentricity and inclination profiles of SSAs at the time the gas of the disk is completely disipated, to be used as initial conditions for the developed of N-body simulations to study the post-oligarchic growth of these systems. Our simulations are based on formation scenarios that present different characteristics regarding theplanets type I migration rates and the size of the planetesimals. Our results suggest that the formation of potentially habitable planets (PHPs) with high water contents seems to be a common process in this kind of scenarios. However, the efficiency in forming PHPs seems to be related to the size of the planetesimals. The smaller theplanetesimals, the greater the efficiency in forming PHPs.