The Sub-millimeter Rotational Spectrum of Ethylene Glycol up to 890 GHz
  and Application to ALMA Band 10 Spectral Line Data of NGC 6334I
  The rotational spectrum of the most stable conformer of ethylene glycol
(HO(CH$_2$)$_2$OH) has been recorded between 360-890 GHz using a
frequency-modulation sub-millimeter spectrometer. The refinement and extension
of the spectroscopic parameters over previous efforts provides predicted
catalog frequencies for ethylene glycol with sufficient accuracy for comparison
to high-frequency astronomical data. The improvement in the cataloged line
positions, and the need for improved accuracy enabled by high-frequency
laboratory work, is demonstrated by an analysis of ethylene glycol emission at
890 GHz in the high-mass star-forming region NGC 6334I in ALMA Band 10
observations. The need for accurate rotational spectra at sub-millimeter
wavelengths/THz frequencies is discussed.
