Evolution of rotating interstellar clouds. III - On the formation of multiple star systems

摘要: The evolution of a rotating massive cloud, starting at interstellar densities, continuing through series intermediate fragmentation stages, and ending with stellar multiple systems components near the main sequence, is outlined. scenario based on results two- three-dimensional numerical hydrodynamical calculations collapsing clouds. Transfer spin angular momentum primarily into orbital motion assumed to occur each stage. Expected initial conditions in cloud lead final fragments which have many cases masses momenta appropriate observed main-sequence systems. Other points comparison observations are briefly noted.