Fig. 2
Integrated emission for the targeted water transitions toward each of the sources. Left column: HDO 31,2 –22,1 transition at 225.9 GHz. The white shaded regions show the FWHM extent of a 2D Gaussian fitted to the data in the image plane and the white cross indicates the peak position of the fit. Middle column: HDO 21,1 –21,2 transition at 241.6 GHz. Right column: H
O
31,3 –22,0
transition at 203.4 GHz. Emission below 5σ
is not included, where 
; dv is the channel width and N is the number of collapsed channels. The black cross marks the 202.7 GHz continuum peak position toward which the spectra are extracted.
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