230 citations · 7k across the 160 of their papers we have counts for
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Exposed Long-lifetime First-core: A New Model of First Cores Based on Radiation Hydrodynamics
Kengo Tomida, Masahiro N. Machida, Kazuya Saigo +2
A first adiabatic core is a transient object formed in the early phase of star formation. The observation of a first core is believed to be difficult because of its short lifetime…
Effect of Magnetic Braking on the Circumstellar Disk Formation in a Strongly Magnetized Cloud
Masahiro N. Machida, Shu-ichiro Inutsuka, Tomoaki Matsumoto
Using resistive magnetohydrodynamics simulation, we investigate circumstellar disk formation in a strongly magnetized cloud. As the initial state, an isolated cloud core embedded i…
Recent Developments in Simulations of Low-mass Star Formation
Masahiro N. Machida
In star forming regions, we can observe different evolutionary stages of various objects and phenomena such as molecular clouds, protostellar jets and outflows, circumstellar disks…
The Origin and Formation of the Circumstellar Disk
Masahiro N. Machida, Tomoaki Matsumoto
The formation and evolution of the circumstellar disk in the collapsing molecular cloud is investigated from the prestellar stage resolving both the molecular cloud core and the pr…
Population III Star Formation in Magnetized Primordial Clouds
Masahiro N. Machida
The evolution of primordial collapsing clouds and formation of proto-Population III stars are investigated using three-dimensional ideal MHD simulation. We calculated the evolution…
Gas Accretion onto a Protoplanet and Formation of a Gas Giant Planet
Masahiro N. Machida, Eiichiro Kokubo, Shu-ichiro Inutsuka +1
We investigate gas accretion onto a protoplanet, by considering the thermal effect of gas in three-dimensional hydrodynamical simulations, in which the wide region from a protoplan…