A high-resolution study of the gas flow in barred spirals

摘要: The considered investigation is concerned with conditions in that type of spiral galaxy which known as a 'barred spiral'. lack star formation and the smoothness dark dust lanes may indicate bar region pervaded by more homogeneous interstellar medium lower viscosity than characteristic outer regions. effects such reduced are investigated on basis high-resolution time-dependent gasdynamical equations. Calculations modeling gas flow given potential presented. calculations were performed grids various mesh sizes consequently had different resolutions numerical viscosities. A reduction diffusion was accompanied changes pattern, including appearance strong shock occurrence postshock outflow.