Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...351l..49d&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 351, March 10, 1990, p. L49-L52. Research supported by NSERC.
Astronomy and Astrophysics
Astronomy
24
Cyclic Hydrocarbons, Infrared Sources (Astronomy), Interstellar Chemistry, Molecular Clouds, Amorphous Materials, Anthracene, Aromatic Compounds, Naphthalene
Scientific paper
It is shown that the IR emission spectrum in objects as the Orion ridge is compatible with the presence of two- to five-ring linear PAH species in amorphous carbons (specifically, the derivatives of naphthalene, anthracene, tetracene, and perhaps pentacene). An origin for these molecules in carbon dust is indicated and is consistent with the structure of laboratory hydrogenated amorphous carbons. Benzene and the simplest aromatic ring molecule, cyclopropenylidene, may be observable in sources which show the UIR emission features.
Duley Walter W.
Jones Adrian P.
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