Figure 4 of HC14 registered on VLA4B, with their main H₂ features outlined in dashed white: inner “bubble” (denoted (a)), outer arcs (denoted (b) and (c)), and the fainter “linear feature” joining (a) and (b). A cross denotes the SiO EHV peak ahead of arc (c). Coloured curves show our best wiggling models in three scenarios (see Table C.1 for details). Predicted companion positions in the orbital models are displayed by filled circles of same color. The [FeII] jet from VLA4B (cf. HC14) is shown as a short black segment.