Moment 0 maps (intensity; blue contours) around IRS7B of all detected spectral lines. All lines are integrated between 4.0 and 8.8 km s^-1, except for in the first C¹⁷O map, where the line is integrated between − 1.7 and + 13.3 km s^-1, to cover the high-velocity component of the emission. The contours are in steps of 3σ, between 4.4 and 6.7 mJy beam^-1 km s^-1 (10.7 mJy beam^-1 km s^-1 for the wide C¹⁷O map). The dust continuum emission is shown in greyscale. The large-scale CH₃OH outflow direction is shown with grey arrows.