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Table 3

Identified lines in the IRS spectra of SN 2004dj.

λ (μm) Ion +115d +139d +261d +291d +510d +661d +868d

4.55 CO + + + +
6.6342 [Ni ii] + + + + + + +
6.9852 [Ar ii] + + +
7.4578 H-Pfα + + +
7.5005 H-Huβ + + + + + +
7.5066 [Ni i] blend with H-Huβ
8.7577 H 7-10 + + + +
10.521 [Co ii] + + + + +
11.306 H 7-9 blend with [Ni i]
11.308 [Ni i] + + +
12.368 H-Huα + + + + +
12.729 [Ni ii] blend with [Ne ii]
12.813 [Ne ii] + + + + + + +

Notes. “+” signs represent positive detection, while “–” symbols mean non-detection of the given feature at the specified epochs.

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