The role of the star cluster on planetary systems's dynamical evolution

As most stars tends to aggregate in dense clusters, it is interesting to study the dynamics of planetary systems in these systems to explain the proprieties of the exoplanets found in our Galaxy. Using the NBODY6++GPU code for the star cluster dynamics and REBOUND for the planetary systems, integrated in the AMUSE environment, we present how Solar-like systems interact with the clustered environment. We use different clusters’ initial conditions, changing virial ratio and stellar density, evolving all clusters for 50 Myr. The encounter strength, the relative velocity of the encountering star and the star cluster density are the main factors that alter the planetary system architecture. Since the Solar system is one of the most complex planetary system, we explore the influence of the star cluster on it. The entire planetary systems survive in the majority of cases, but other systems have either lost the most external planets, and others have lost all of them. However, in most cases, their orbital parameters result perturbated from their original configuration, and the secular evolution is slightly changed, in respect of the field star scenario.