New identification of the weak ¹⁴NH A³Π_i − X³Σ⁻(0–1) band (red) in the observed spectrum of T7 (blue). Individual modeled emission lines of the (0–1) band are represented by the dashed red lines. (a) The most intense ¹⁴NH lines in the spectral region 3730–3750 Å are identified in the observed spectrum of T7. (b) The most intense ¹⁴NH lines in the spectral region 3750–3770 Å are identified in the observed spectrum of T7.