3 citations · 5 across the 7 of their papers we have counts for
7 papers
Modeling of Collisional Outcomes Based on Impact Simulations of Mars-sized Bodies
Hiroshi Kobayashi, Hidekazu Tanaka, Yukihiko Hasegawa +1
We investigate the outcomes of collisions between Mars-sized bodies through smooth particle hydrodynamics (SPH) simulations, focusing on the transitions among ``merging'', ``hit-an…
Dust coagulation assisted by streaming instability in protoplanetary disks
Ryosuke T. Tominaga, Hidekazu Tanaka
The streaming instability is a promising mechanism for planetesimal formation. The instability can rapidly form dense clumps that collapse self-gravitationally, which is efficient…
Molecular dynamics simulations of head-on low-velocity collisions between particles
Yuki Yoshida, Eiichiro Kokubo, Hidekazu Tanaka
The particle contact model is important for powder simulations. Although several contact models have been proposed, their validity has not yet been well established. Therefore, we…
Three-dimensional Interaction between a Planet and an Isothermal Gaseous Disk. III. Locally Isothermal Cases
Hidekazu Tanaka, Kohei Okada
We performed linear calculations to determine the Type I planetary migration rate for three-dimensional locally isothermal disks with radial temperature gradients. For 3D disks wit…
Interparticle normal force in highly porous granular matter during compression
Sota Arakawa, Misako Tatsuuma, Hidekazu Tanaka +2
We perform a numerical simulation of compression of a highly porous dust aggregate of monodisperse spheres. We find that the average interparticle normal force within the aggregate…
Rapid Dust Growth During Hydrodynamic Clumping Due to Streaming Instability
Ryosuke T. Tominaga, Hidekazu Tanaka
Streaming instability is considered to be one of the dominant processes to promote planetesimal formation by gravitational collapse of dust clumps. The development of streaming ins…
Rapid Formation of Gas-giant Planets via Collisional Coagulation from Dust Grains to Planetary Cores. II. Dependence on Pebble Bulk Density and Disk Temperature
Hiroshi Kobayashi, Hidekazu Tanaka
Thanks to ``dust-to-planet'' simulations (DTPSs), which treat the collisional evolution directly from dust to giant-planet cores in a protoplanetary disk, we showed that giant-plan…