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Theoretical Modelling of the Infrared Fluorescence by Interstellar Polycyclic Aromatic Hydrocarbons

Published online by Cambridge University Press:  07 August 2017

W. A. Schutte ,
A. G. G. M. Tielens  and
L. J. Allamandola
W. A. Schutte
Affiliation:
Space Science Division, MS:245-6, NASA/Ames Research Center, Moffett Field, CA 94035, U.S.A.
A. G. G. M. Tielens
Affiliation:
Space Science Division, MS:245-6, NASA/Ames Research Center, Moffett Field, CA 94035, U.S.A.
L. J. Allamandola
Affiliation:
Space Science Division, MS:245-6, NASA/Ames Research Center, Moffett Field, CA 94035, U.S.A.

Abstract

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We modelled the IR emission of interstellar PAHs. Substantial differences between the IR properties of interstellar and laboratory PAHs are found, possibly resulting from ionization. The various IR features being dominated by distinctly different size PAHs, their observed relative intensities are sensitive indicators of the size distribution. A number of applications of our model related to future ISO and SIRTF IR data are pointed out.

Type
Diffuse, Translucent and High-Latitude Clouds
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 137 - 138
Copyright
Copyright © Kluwer 1992 

References

REFERENCES

deFrees, D. J., Miller, M. D., Talbi, D., Pauzat, F., and Ellinger, E. (1991) Theoretical IR spectra of PAHs and the effect of ionization', preprint.Google Scholar
Jourdain de Muizon, M. J., d'Hendecourt, L. B., and Geballe, T. R. (1990) ‘Polycyclic aromatic hydrocarbons in the near-infrared spectra of 24 IRAS sources’, A&A 227, 526–541.Google Scholar
Léger, A., and Puget, J. L. (1984) ‘Identification of the “unidentified IR emission features of interstellar dust ?’, A&A 137, L5.Google Scholar