4 citations · 9 across the 9 of their papers we have counts for
9 papers
Formation of Ryugu's parent planetesimal beyond the CO snow line from small pebbles: insights from thermal evolution modeling
Sota Arakawa, Hidenori Genda, Noriyuki Kawasaki +3
Astronomical observations of planet-forming circumstellar disks indicate that planetesimals form from 0.1-mm- to 1-cm-sized dust aggregates, commonly called ``pebbles.'' When such…
The dust-rich, gas-depleted protosolar disk as the birthplace of chondrules
Sota Arakawa, Hidekazu Tanaka, Toshihiko Kadono +3
Chondrules are the primary components of primitive meteorites known as chondrites, and understanding their formation and accumulation is essential for elucidating the history of pl…
A semi-analytic model of the bouncing barrier for protoplanetary dust aggregates
Sota Arakawa, Haruto Oshiro, Yuki Yoshida +1
Collisional bouncing limits the growth of dust aggregates in protoplanetary disks, but its dependence on aggregate size, collision velocity, and filling factor remains poorly under…
Compression-driven jamming in porous cohesive aggregates
Sota Arakawa
I investigate the compression-driven jamming behavior of two-dimensional porous aggregates composed of cohesive, frictionless disks. Three types of initial aggregates are prepared…
Numerical Investigation on the Compressive Behavior of Hierarchical Granular Piles
Sota Arakawa, Mikito Furuichi, Daisuke Nishiura
Hierarchical granular piles composed of aggregates are key structural features in both geoscience and planetary science, from fault gouge in seismic zones to the internal structure…
Low rock mass fraction within trans-Neptunian objects inferred from the spin-orbit evolution of Orcus-Vanth and Salacia-Actaea
Sota Arakawa, Shunichi Kamata, Hidenori Genda
Satellites play a crucial role in understanding the formation and evolution of trans-Neptunian objects (TNOs). The spin--orbit evolution of satellite systems depends on their therm…
A closer look at individual collisions of dust aggregates: Material mixing and exchange on microscopic scales
Sebastiaan Krijt, Sota Arakawa, Mark Oosterloo +1
Collisions between aggregates with different histories and compositions are expected to be commonplace in dynamically active protoplanetary discs. Nonetheless, relatively little is…
On the elastoplastic behavior in collisional compression of spherical dust aggregates
Sota Arakawa, Hidekazu Tanaka, Eiichiro Kokubo +4
Aggregates consisting of submicron-sized cohesive dust grains are ubiquitous, and understanding the collisional behavior of dust aggregates is essential. It is known that low-speed…
Isotopic variation of non-carbonaceous meteorites caused by dust leakage across the Jovian gap in the solar nebula
Kazuaki A. Homma, Satoshi Okuzumi, Sota Arakawa +1
High-precision isotopic measurements of meteorites revealed that they are classified into non-carbonaceous (NC) and carbonaceous (CC) meteorites. One plausible scenario for achievi…