The Millimeter- and Submillimeter-Wave Spectrum of Glycolaldehyde (CH₂OHCHO)

Authors

Rebecca A. H. Butler
Frank C. De Lucia
Douglas T. Petkie, Wright State University - Main CampusFollow
Harald Mollendal
Anne Horn
Eric Herbst

Document Type

Article

Publication Date

6-2001

Abstract

The simplest monosaccharide, glycolaldehyde (CH2OHCHO), has recently been detected toward the Galactic center in the source Sgr B2(N) at five frequencies from 71-104 GHz. None of the individual lines used in the detection had been measured previously in the laboratory; rather, their frequencies were predicted based on lower frequency measurements. We have now recorded and analyzed many new rotational transitions of glycolaldehyde through 354 GHz using two spectrometers. Lines through 48 GHz in frequency were measured with a spectrometer that uses Stark modulation, while the higher frequency transitions were measured with a FASSST (Fast Scan Submillimeter Spectroscopic Technique) apparatus. Analysis of the data has allowed us to confirm the interstellar identifications and to predict the frequencies of many additional lines not measured in the laboratory.

Repository Citation

Butler, R. A., De Lucia, F. C., Petkie, D. T., Mollendal, H., Horn, A., & Herbst, E. (2001). The Millimeter- and Submillimeter-Wave Spectrum of Glycolaldehyde (CH₂OHCHO). The Astrophysical Journal Supplement Series, 134, 319-321.
https://corescholar.libraries.wright.edu/physics/783

DOI

10.1086/320859