New insights in the photochemistry of grain mantles: the identification of the 4.62 and 6.87 μm bands.

Details New insights in the photochemistry of grain mantles: the identification of the 4.62 and 6.87 μm bands. New insights in the photochemistry of grain mantles: the identification of the 4.62 and 6.87 μm bands.

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989iaus..135p.245g&link_type=abstract

IAU Symposium No. 135: Interstellar dust: contributed papers, p. 245 - 246

Physics

Molecular Clouds: Interstellar Grains, Photochemistry: Interstellar Grains

Scientific paper

The mid-IR spectral region of molecular clouds is known to show the fingerprints of molecules frozen in the icy mantles of the interstellar grains. So far, only a few molecules have been positively identified. With the recent identification of the 4.62 μm absorption band in W33A with the OCN- ion a new field of potential candidates became available. To study in more detail the complex chemical and physical interactions going on in the ice mantles accreted on grains in molecular clouds the authors performed numerous experiments involving UV irradiation and diffusion experiments. They present here some new ideas about the photochemistry of molecular ices.

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