253 citations · 1.1k across the 17 of their papers we have counts for
19 papers · 1 filter
Magneto-Hydrodynamics of Population III Star Formation
Masahiro N. Machida, Tomoaki Matsumoto, Shu-ichiro Inutsuka
Jet driving and fragmentation process in collapsing primordial cloud are studied using three-dimensional MHD nested grid simulations. Starting from a rotating magnetized spherical…
Angular Momentum Accretion onto a Gas Giant Planet
Masahiro N. Machida, Eiichiro Kokubo, Shu-ichiro Inutsuka +1
We investigate the accretion of angular momentum onto a protoplanet system using three-dimensional hydrodynamical simulations. We consider a local region around a protoplanet in a…
The Effect of Poloidal Magnetic Field on Type I Planetary Migration: Significance of Magnetic Resonance
Takayuki Muto, Masahiro N. Machida, Shu-ichiro Inutsuka
We study the effect of poloidal magnetic field on type I planetary migration by linear perturbation analysis in the shearing-sheet approximation and the analytic results are compar…
Conditions for the Formation of First-Star Binaries
Masahiro N. Machida, Kazuyuki Omukai, Tomoaki Matsumoto +1
The fragmentation process of primordial-gas cores during prestellar collapse is studied using three-dimensional nested-grid hydrodynamics. Starting from the initial central number…
Formation Scenario for Wide and Close Binary Systems
Masahiro N. Machida, Kohji Tomisaka, Tomoaki Matsumoto +1
Fragmentation and binary formation processes are studied using three-dimensional resistive MHD nested grid simulations. Starting with a Bonnor-Ebert isothermal cloud rotating in a…
Evolutionary Conditions in the Dissipative MHD System Revisited
Tsuyoshi Inoue, Shu-ichiro Inutsuka
The evolutionary conditions for the dissipative continuous magnetohydrodynamic (MHD) shocks are studied. We modify Hada's approach in the stability analysis of the MHD shock waves.…