Fig. 2
Background-subtracted spectrum of the source J174505.6–291018. The data of the different subslits are presented by the three different colors (green: SL2 or LL2; blue: SL3 or LL3; red: SL1 or LL1). Denoted are the silicate absorption features, the PAH emission bands, and the forbidden fine structure lines [Ar ii], [Ne ii], and [S iii].
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