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Fig. 9.
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Q–U diagrams for the Ca II infrared triplet lines in IRAS 17163, obtained on 4 and 8 July 2023. The data are unbinned and continuum-subtracted. The left, centre, and right panels correspond to the Ca II 8498.018 Å, 8542.089 Å, and 8662.140 Å lines, respectively.
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