Hierarchical structure and virial estimates for MBM12 with ¹³CO (J = 1-0) observations with the TRAO. Panel a: centre velocities for dendrogram structures. The plot was made by plotting the largest-scale structures first with a single colour corresponding to their V_cen, and then the smaller-scale structures have been plotted on top. Panel b: virial parameter estimates for dendrogram structures. The plot was made in the same way as panel a, but with the colour defined by the value of α_vir. Panel c: tree diagram for ¹³CO observations of MBM12. The tree diagram is coloured according to the value of V_cen for the structure with the same colour scale as panel a. The structures with the four largest-scales are shown in red. Panel d: tree diagram for α_vir estimated with the ¹³CO observations of MBM12. The tree diagram is coloured according to α_vir with the same colour scale as panel b.