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 protoplanetary diskâ€¦ (More)

The fragmentation process of primordial-gas cores during prestellar collapse is studied using three-dimensional nested-grid hydrodynamics. Starting from the initial central number density of nc âˆ¼ 10â€¦ (More)

Fragmentation and binary formation processes are studied using threedimensional resistive MHD nested grid simulations. Starting with a BonnorEbert isothermal cloud rotating in a uniform magneticâ€¦ (More)

Since 1995, over 550 exo-planets have been discovered. It is considered that a large fraction of exo-planets are the gas giant planet. Recently, some planets were observed by SUBARU telescope withâ€¦ (More)

We studied the collapse of rotating molecular cloud cores with inclined magnetic fields, based on three-dimensional numerical simulations. The numerical simulations start from a rotating Bonnorâ€“Ebertâ€¦ (More)

The evolution of the magnetic field and angular momentum in the collapsing cloud core is studied using three-dimensional resistive MHD nested grid simulations. Starting with a Bonnor-Ebert isothermalâ€¦ (More)

The fragmentation process in collapsing clouds with various metallicities is studied using three-dimensional nested-grid hydrodynamics. Initial clouds are specified by three parameters: cloudâ€¦ (More)

Jet driving and fragmentation process in collapsing primordial cloud are studied using three-dimensional MHD nested grid simulations. Starting from a rotating magnetized spherical cloud with theâ€¦ (More)

Subsequent to Paper I, the evolution and fragmentation of a rotating magnetized cloud are studied with use of three-dimensional MHD nested-grid simulations. After the isothermal runaway collapse, anâ€¦ (More)