443 citations · 1.4k across the 26 of their papers we have counts for
26 papers
Formation of Isotopically Heterogeneous Molecular Cloud Cores in Filamentary Molecular Clouds
Yoshiaki Misugi, Shu-ichiro Inutsuka, Taishi Nakamoto +1
Meteorite analysis shows that the older solids of the solar system, such as the calcium-aluminum-rich inclusions (CAIs), have isotopic inhomogeneity. This indicates that the isotop…
Oxygen Isotope Exchange Between Molten Silicate Spherules and Ambient Water Vapor with Nonzero Relative Velocity: Implication for Chondrule Formation Environment
Sota Arakawa, Daiki Yamamoto, Takayuki Ushikubo +4
Oxygen isotope compositions of chondrules reflect the environment of chondrule formation and its spatial and temporal variations. Here, we present a theoretical model of oxygen iso…
Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth
Sota Arakawa, Satoshi Okuzumi, Misako Tatsuuma +5
Understanding the collisional behavior of dust aggregates is essential in the context of planet formation. It is known that low-velocity collisions of dust aggregates result in bou…
Fine-grained rim formation via kinetic dust aggregation in shock waves around evaporating icy planetesimals
Sota Arakawa, Hiroaki Kaneko, Taishi Nakamoto
Fine-grained rims (FGRs) are frequently found around chondrules in primitive chondrites. The remarkable feature of FGRs is their submicron-sized and non-porous nature. The typical…
Dependence of the initial internal structure of chondrule rim on dust size distribution
Hiroaki Kaneko, Sota Arakawa, Taishi Nakamoto
Coarse objects in chondrites such as chondrules and CAIs are mostly coated with fine-grained rims (FGRs). FGRs can be formed on the surface of free floating chondrules in a turbule…
Geometrical structure and thermal conductivity of dust aggregates formed via ballistic cluster-cluster aggregation
Sota Arakawa, Masaki Takemoto, Taishi Nakamoto
We herein report a theoretical study of the geometrical structure of porous dust aggregates formed via ballistic cluster-cluster aggregation (BCCA). We calculated the gyration radi…