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most citedDiscovery of Small-Scale Spiral Structures in the Disk of SAO 206462 (HD 135344B): Implications for the Physical State of the Disk from Spiral Density Wave Theory

399 citations · 10.7k across the 204 of their papers we have counts for

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27 papers · 1 filter

astro-ph2008★ 24 cited

Orbital Evolution of a Particle Interacting with a Single Planet in a Protoplanetary Disk

Takayuki Muto, Shu-ichiro Inutsuka

We investigate the motion of a particle around a low mass planet embedded in a non-turbulent gaseous disk. We take into account the effect of the gas structure that is modified by…

astro-ph2008★ 71 cited

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…

astro-ph2008★ 93 cited

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…

astro-ph2008★ 135 cited

Two-Fluid MHD Simulations of Converging HI Flows in the Interstellar Medium. I: Methodology and Basic Results

Tsuyoshi Inoue, Shu-ichiro Inutsuka

We develop an unconditionally stable numerical method for solving the coupling between two fluids (frictional forces/heatings, ionization, and recombination), and investigate the d…

astro-ph2007★ 21 cited

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…

astro-ph2007★ 75 cited

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…