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The Infrared Emission Features and Polycyclic Aromatic Hydrocarbons

Published online by Cambridge University Press:  23 September 2016

L. J. Allamandola
L. J. Allamandola*
Affiliation:
NASA-Ames Research Center, Moffett Field, CA 94035

Abstract

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The infrared evidence which supports the PAH hypothesis is briefly summarized. Rather than presenting a general discussion of these assignments, this paper focuses on the spectroscopic issues raised by recent observational and experimental developments. These issues include: the position and profile of the “1310” cm−1 (“7.7” μm) feature, the position and intensities of the bands in the 910-710 cm−1 (11-14 μm) region, the newly detected 1900 cm−1 (5.3 μm) band, and the spatial and spectral variations in the 3000 cm−1 (3 μm) region as well as in the 12 and 25 μm IRAS bands. It is concluded that the infrared evidence for interstellar PAHs and PAH-related species is compelling.

Type
Section II: The Overidentified Infrared Emission Features
Information
Symposium - International Astronomical Union , Volume 135: Interstellar Dust , 1989 , pp. 129 - 140
Copyright
Copyright © Kluwer 1989 

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