A series of formation processes from a central star to a Keplerian disk, spiral arms, and a single companion (a brown dwarf for $m_{S}=0.1M_{\odot}$, or a star for $m_{S}=0.5M_{\odot}$) at $\alpha=0.05$.

The same formation processes, but for multiple companions (a brown dwarf and planets for $m_{S}=0.1M_{\odot}$, or a star and brown dwarfs for $m_{S}=0.5M_{\odot}$) at $\alpha=0.06$.