Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...225l...1c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 225, no. 1, Nov. 1989, p. L1-L4.
Astronomy and Astrophysics
Astronomy
22
Cosmic Dust, Ice, Infrared Sources (Astronomy), Interstellar Matter, Line Spectra, Molecular Clouds, Absorption Spectra, Infrared Astronomy Satellite, Infrared Radiation, Infrared Spectra, Libration, Line Of Sight
Scientific paper
The paper presents the infrared spectrum between 1 micron and 1 mm of the embedded infrared source AFGL 961, associated with the Rosette molecular cloud. Complementing previous data, the IRAS-LRS data provides evidence for a broad absorption band centered at 13.6 microns. After careful analysis and comparison with laboratory data, the feature is attributed to the libration mode of amorphous water in interstellar ices. The region from 5 to 10 microns is dominated by deep absorption bands. It is proposed that near about 7 microns carbonates substantially contribute to the observed absorption.
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