Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...259l..12p&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 1, p. L12-L14.
Astronomy and Astrophysics
Astronomy
5
Carbon Monoxide, Infrared Astronomy, Interstellar Matter, Ion Irradiation, Methyl Alcohol, Water, Astronomical Spectroscopy, Cosmic Dust
Scientific paper
We present laboratory data on the shape of the 4.67 micron band of frozen CO in mixtures with CH3OH and CH3OH+H2O. The mixtures have been produced both by depositing CO together with CH3OH (or CH3OH+H2O) and by depositing only CH3OH CH3OH+H2O) and producing CO by ion irradiation. We find that the mixtures here studied are good candidates to reproduce the band observed in astronomical sources. The effect of producing CO by ion irradiation is that the band results to be broader. The same is observed for the narrow band of irradiated pure CO. Such a broadening might help, under circumstances to be investigated in detail, to better reproduce the astronomical spectra.
Palumbo Maria Elisabetta
Strazzulla Giovanni
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