Fig. 1
Observed spectra of a) ortho-NH310−00, ortho-H2O 110−101 (previously presented by H11); and b) N2H+ 6–5, using Herschel WBS. The dashed line shows the continuum-subtracted spectral baseline. The o-H2O and o-NH3 lines are observed in opposite sidebands, causing the o-H2O to be detected at a velocity of −14 km s-1 in panel a).
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