3 papers
astro-ph2000
Stability of Toomre-Hayashi Disk
Tomoyuki Hanawa, Kazuya Saigo, Tomoaki Matsumoto
We investigate stability of Toomre-Hayashi model for a self-gravitating, rotating gas disk. The rotation velocity, , and sound speed, , are spatially constant i…
astro-ph1994
High Velocity Oblique Cloud Collision and Star and Star Cluster Formation through Gravitational Instability of the Shock-Compressed Slab with Rotation and Velocity Shear
Masatoshi Usami, Tomoyuki Hanawa, Mitsuaki Fujimoto
We study the gravitational instability of an isothermal gaseous slab formed by cloud-cloud collision and compression at the cloud interface. The compressed gaseous slab rotates and…
astro-ph1994
Fragmentation of a Magnetized Filamentary Molecular Cloud Rotating around its Axis
Tomoaki Matsumoto, Fumitaka Nakamura, Tomoyuki Hanawa
The dynamical instability of a self-gravitating magnetized filamentary cloud was investigated while taking account of rotation around its axis. The filamentary cloud of our model i…