Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991plas.rept..177s&link_type=abstract
In NASA, Washington, Reports of Planetary Astronomy, 1991 p 177 (SEE N92-12792 03-89)
Astronomy and Astrophysics
Astronomy
Astronomical Spectroscopy, Chemical Composition, Comets, Line Spectra, Planetary Atmospheres, Radiative Transfer, Abundance, Astronomical Observatories, Hydrocyanic Acid, Methyl Alcohol, Molecules, Submillimeter Waves, Telescopes, Trace Elements
Scientific paper
During 1990, a significant step was made in asertaining the molecular composition of comets by our Planetary Astronomy group at the University of Massachusetts. We obtained several exciting new detections of submillimeter wave spectral lines from molecules in the coma of Comet Levy (1990c) using the 10m telescope of the Caltech Submillimeter Observatory, located on Mauna Kea. The molecules HCN, formaldahyde, and methanol were all detected in abundances that make them important minor constituents of the nucleus. Moreover, the emission was so strong that, for the first time, it was possible to map the distribution of these species in the coma and study their behavior as they flow outwards from the nucleus.
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