Top panel: integrated spectrum (left) and continuum image (right) for HerBS-204. The continuum contours start at 2σ and are spaced in steps of 1σ = 31 μJy beam⁻¹. Fits to the continuum and the integrated emission line profile are shown as dotted and solid red lines, respectively. Bottom panel: velocity integrated image of the emission line at 102.584 GHz (left) and velocity field map of HerBS-204. The velocity map was obtained for the emission line above a threshold of 20% of the peak emission in the velocity integrated image. Line contours start at 2σ and are shown in steps of 1σ = 0.15 Jy km s⁻¹; velocity contours are in units of 50 km s⁻¹. The synthesized beams are shown in the lower left corners.