Abstract

Poster - Splinter General   (MW-1801 / virtual plenum)

Water transport in late stage accretion with N-body and SPH simulations

Yerassyl Telman, Christoph Schäfer, Nader Haghighipour
University of Tübingen, University of Hawaii

Theoretical models and observational evidence suggest that Earth and the other terrestrial planets formed with insufficient water, and that their present water inventories were delivered through chaotic collisions with planetary embryos and planetesimals during the late stages of planetary accretion. Understanding this water transport process requires extensive numerical simulations. In this project, we perform a series of simulations using a new code, RSMC, built on Rebound for N-body simulations of planetary embryos and thousands of planetesimals in a Jupiter-Saturn system, and a smoothed particle hydrodynamics (SPH) code miluphcuda, for simulating collisions between the bodies. We further expand this project to study the effect of dynamical friction induced by planetesimals on the collisions between embryos by implementing an analytical solution for the dynamical friction of the planetesimal medium, since the dynamical friction is proven to change the collision velocity, and consequently the outcome of collisions. Note: this abstract substitutes the previous one with wrong title.