[MGI40-07] Development of P3T Code for Planetary System Formation: GPLUM
Keywords:N-body simulation, planetary system formation
We have developed a new N-body simulation code with particle-particle particle-tree (P3T) scheme for planetary system formation, GPLUM. GPLUM uses a fourth-order Hermite scheme to calculate gravitational interactions between particles within cut-off radii of individual particles and a Barnes-Hut tree scheme for gravitational interactions with particles outside the cut-off radii. In existing implementations of the P3T schemes, the same cut-off radius is used for all particles. Thus, when the range of the mass of the planetesimals becomes large, the calculation speed decreases. We have solved this problem by allowing each particle to determine its appropriate cutoff radius depending on its mass and distance from the central star.
GPLUM allows us to perform N-body simulations with ~106-107 particles. By using GPLUM, we will perform N-body simulations with wide range and high resolution and investigate various parameters by perform parameter studies with N-body simulations. By using GPLUM, we will perform N-body simulations with wide range and high resolution and investigate various parameters by perform parameter survays with N-body simulations.