Integrated emission maps of the HDO line at 225.9 GHz (top) and the line at 203.4 GHz (bottom). The blue and red contours correspond to the integrated flux between 4.5 and 7.5 km s⁻¹ and 7.5 and 12 km s⁻¹, respectively. The levels of contours start at 3σ with a step of 3σ for all except for the HDO contours in red (7.5–12 km s⁻¹) which are spaced by 5σ. Dust continuum is indicated in grayscale. The beam sizes are shown in the bottom left corner.