Distribution of isolated galaxies by distances and velocities relative to the Local group barycentre assuming the minor attractor model. Upper panel: barycentre position locates at x = D_c/D_M31 = 0.55 towards the M31. The solid circles indicate galaxies that have the MW or M31 as the main disturber. Lower panel: Hubble flow around the LG at the barycentre position of x = D_c/D_M31 = 0.43. The grey wedges trace the companion positions under different x, where their thin end corresponds to the barycentre coinciding with M31. Solid and dotted lines in the insert indicate the velocity dispersion as a function of x with and without the Leo A, respectively.