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Fig. 2

H2O (110−101) spectra obtained with HIFI. The blue spectral line is the HRS, and the black spectral line is the WBS. Both observations were centred on HH 54 B: α2000 = 12h55m503, δ2000 = −76°56′23′′. The dashed line indicates the position of the velocity of the cloud.
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