SiO(5−4) (top panel) and (8–7) (bottom panel) maps observed with the APEX telescope. The velocity axis extendes from − 95 to 85 km s^-1 for both data sets, while the temperature scale is covers − 0.4 to 3 K. The data are shown with the original angular resolution of 305 (SiO(5−4)) and 191 (SiO(8–7)). The centre of the maps is given in Table 1. The black triangle marks the peak position (SiO-APEX, see Table 2) of the integrated intensity SiO(5−4) and (8–7) maps (in the velocity range − 40 < ν < 40 km s^-1) smoothed to the angular resolution of the SiO(5−4) data, 305.