Fig. 4
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ALMA Band 3 spectra extracted using a 12.″5 radius aperture centred on the star, for IRAS 15194−5115 (top), IRAS 15082−4808 (middle), and IRAS 07454−7112 (bottom). The spectrum in the lower panel for each star is capped at a low flux density limit to reveal the weaker emission lines.
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