Japan Geoscience Union Meeting 2023

Presentation information

Print

[J] Online Poster

M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations

[M-GI30] Computational sciences on the universe, galaxies, stars, planets, and their environments

Thu. May 25, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (25) (Online Poster)

convener:Yoshi-Yuki Hayashi(Department of Planetology/CPS, Graduate School of Science, Kobe University), Junichiro Makino(Kobe University), Eiichiro Kokubo(Division of Science, National Astronomical Observatory of Japan), Masaki Ogawa

On-site poster schedule(2023/5/26 17:15-18:45)

10:45 AM - 12:15 PM

[MGI30-P01] Giant Impact Simulations: Effects of Algorithm, Resolution, and Equation of State

*Natsuki Hosono1,2, Eiichiro Kokubo3 (1.Department of Planetology, Graduate School of Science, Kobe University, 2.JAMSTEC, 3.NAOJ)

Keywords:Earth, Moon, The Giant Impact

The giant impact hypothesis is a collision between two planetary embryos, which is originally suggested as the origin of the Moon.
To date, a number of numerical simulations have been carried out by the smoothed particle hydrodynamics (SPH) method to check whether the scenario can form the Moon.
As a result, it is believed to be the most favourable scenario as the origin of the Moon.
However, the effect of the resolution on the results of the giant impact simulations has not been surveyed yet.
In this presentation, we will report the results of the numerical simulations of the giant impact by changing the algorithm, resolution, and equation of state.
We employed the updated SPH method, density-independent SPH and Japanese supercomputer FUGAKU.