Infrared observations of methanol in Comet P/Swift-Tuttle

Details Infrared observations of methanol in Comet P/Swift-Tuttle Infrared observations of methanol in Comet P/Swift-Tuttle

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993icar..105..548h&link_type=abstract

Icarus, vol. 105, p. 548

Astronomy and Astrophysics

Astronomy

13

Infrared Spectroscopy, Infrared Astronomy, Methyl Alcohol, Comets, Infrared Spectra, Data Reduction, Formaldehyde, Interstellar Gas

Scientific paper

IR spectroscopic spectra of P/Swift-Tuttle in the 2.9-3.6 microns region exhibit emission from the nu3 band of cometary methanol at 3.52 microns. The weighted average for the relative abundance of methanol relative to water is found to be 7 +/- 1 percent, supporting the concept that methanol constitutes a significant portion of cometary volatile carbon. These spectra show that the nu2 and nu9 bands of methanol make up 60 percent of the 3.4-micron-centered 'cometary organic feature'.

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