ur_lamp
Identification of the Ur-Neon lamp spectra seems hardly possible.
IGRINS Ur-Ne spectra is compared to the published spectra of Ur-Ne (only part of H-band is available), but the two spectra are quite different. Furthermore, IGRINS Ur-Ne show little coincidence with published linelist of Ur-Ar lamp.
In the figure below, IGRINS spectra of Ur-Ne lamp (H-band order 119) is shown as positive lines. Ur-Ne spectra from literature is plotted is negative red line and Ur-Ar line lists are shown as vertical lines with negative values.
The reason for this discrepancy is currently not known.