Formation of Solar System Analogs through N-body simulations and water delivery on potencially habitable planets

MARÍA PAULA RONCO; GONZALO CARLOS DE ELÍA

Coyhaique

Congreso; Astrobioloy 2017 - Research meeting by IAU?s commission F3; 2017

p { margin-bottom: 0.25cm; line-height: 120%; }Here in this work we present final results on the formation and evolution of Solar System Analogs (SSA) and water delivery on to the rocky planets formed within the habitable zone. In order to find suitable initial conditions to formSSA, we first developed a planetary population synthesis analysis by improving our model of planet formation that studies the formation of a planetary system during the gaseous phase (Ronco et al. 2017: Paper I).The results of this analysis provided us with initial conditions (embryo distributions, planetesimal distributions and planetesimal eccentricity and inclination profiles at the end of the gaseous phase) to developed N-body simulations using the Mercury code to study the post-oligarchic growth of these systems. We integrate these SSA for 200 Myr, which are typical time scales for the formation of terrestrial planets.Our simulations are based on formation scenarios that present different characteristics regarding the type I migration rates of the planets and the size of the planetesimals. The main goal of this work is to analyze which of these scenarios form, at the end of the late accretion stage, planetary systems similar to our own, and which do not, and why. Particularly we are interested in the water delivery to those planets that remain within the habitable zone of this SSA. This analysis will be fundamental to determine the potencial astrobiological interest of those planets.