Same as Fig. 2 for the simulated channel maps of post-imaging continuum-subtracted SiO ν= 0J = 5−4. The white contours represent 6, 12, 18, 24, 48, and 72σ and the yellow contours represent −72, −60, −48, −36, −24, −12, and −6σ, where σ = 0.80 mJy beam^-1 is the map rms noise in the real data. The LSR velocities are slightly different from those in Fig. 2 because of the different velocity grid in our model.