Fig. A.1
Top: 63.2 μm [OI] line of G5.89–0.39 after correction for the broad atmospheric absorption, but with the telluric [OI] line still uncorrected. Centre: Telluric [OI] emission line. Bottom: [OI] spectrum after the correction derived from a Gaussian fit to the telluric line. The continuum level is not corrected for the fact that GREAT operates in double-sideband.
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