59 citations · 309 across the 20 of their papers we have counts for
9 papers · 1 filter
Ejection of close-in super-Earths around low-mass stars in the giant impact stage
Yuji Matsumoto, Pin-Gao Gu, Eiichiro Kokubo +2
Earth-sized planets were observed in close-in orbits around M dwarfs. While more and more planets are expected to be uncovered around M dwarfs, theories of their formation and dyna…
Aggregate Growth and Internal structures of Chondrite Parent Bodies Forming from Dense Clumps
Yuji Matsumoto, Shigeru Wakita, Yasuhiro Hasegawa +1
Major components of chondrites are chondrules and matrix. Measurements of the volatile abundance in Semarkona chondrules suggest that chondrules formed in a dense clump that had a…
The Properties of Planetesimal Collisions under Jupiter's Perturbation and the Application to Chondrule Formation via Impact Jetting
Shoichi Oshino, Yasuhiro Hasegawa, Shigeru Wakita +1
Understanding chondrule formation provides invaluable clues about the origin of the solar system. Recent studies suggest that planetesimal collisions and the resulting impact melts…
PENTACLE: Parallelized Particle-Particle Particle-Tree Code for Planet Formation
Masaki Iwasawa, Shoichi Oshino, Michiko S. Fujii +1
We have newly developed a Parallelized Particle-Particle Particle-tree code for Planet formation, PENTACLE, which is a parallelized hybrid -body integrator executed on a CPU-bas…
Chondrule Accretion with a Growing Protoplanet
Yuji Matsumoto, Shoichi Oshino, Yasuhiro Hasegawa +1
Chondrules are primitive materials in the Solar System. They are formed in the first about 3 Myr of the Solar System's history. This timescale is longer than that of Mars formation…
Planetesimal collisions as a chondrule forming event
Shigeru Wakita, Yuji Matsumoto, Shoichi Oshino +1
Chondritic meteorites contain unique spherical materials named chondrules: sub-mm sized silicate grains once melted in a high temperature condition in the solar nebula. We numerica…
Forming Chondrites in a Solar Nebula with Magnetically Induced Turbulence
Yasuhiro Hasegawa, Neal J. Turner, Joseph Masiero +3
Chondritic meteorites provide valuable opportunities to investigate the origins of the solar system. We explore impact jetting as a mechanism of chondrule formation and subsequent…
Chondrule Formation via Impact Jetting Triggered by Planetary Accretion
Yasuhiro Hasegawa, Shigeru Wakita, Yuji Matsumoto +1
Chondrules are one of the most primitive elements that can serve as a fundamental clue as to the origin of our Solar system. We investigate a formation scenario of chondrules that…
Particle-Particle Particle-Tree: A Direct-Tree Hybrid Scheme for Collisional N-Body Simulations
Shoichi Oshino, Yoko Funato, Junichiro Makino
In this paper, we present a new hybrid algorithm for the time integration of collisional N-body systems. In this algorithm, gravitational force between two particles is divided int…