Extracted TMR-1 spectra. All spectra cover the same wavelength range from 1.85 –2.5 μm. The identification and positions of ro-vibrational H₂ lines and the Brγ emission line are indicated in the spectrum of the H₂ knot 1. Note that atomic hydrogen emission lines (in particular the Brγ-line) are caused or reinforced by division through the standard star, which shows hydrogen absorption (see text for further discussion).