Fig. 7
Tentative NIR DIB candidates at 12 336.3 Å, 20 427.8 Å, 21 387.0 Å, 21 842.5 Å, and 21 887.7 Å (from top to bottom) towards the reddened star 4U 1907 (and HD 183143 and HD 161061 where applicable). Dotted vertical lines indicate the position of the tentative NIR DIBs. The telluric standard spectrum of HD 153294 (dashed cyan) and stellar atmosphere model of an O9Ia star (solid yellow) are overplotted for reference. The feature at 21 842.5 Å is possibly (a blend with) a stellar He i line.
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