Fig. 4
Integrated intensity maps for the 31,2 − 22,1 (225 GHz) and 21,1 − 21,2 (241 GHz) transitions of HDO toward IRAS 2A, in the interval vline ± FWHM. The beam is shown in the lower right corner and the red crosses show the position of continuum peaks. Contours start at 39.6 mJy km s-1 (steps of 20σ), dashed contours represent negative values.
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