Abstract
Coronene encapsulated in a KBr pellet has been heated over a range of temperatures up to 788 K and its mid—infrared absorption spectrum obtained at selected temperatures. Changes in the aborbance spectum at elevated temperatures include a 3—fold strengthening of coronene’s 3.29 µm band which assumes a profile very similar to the 3.29 µm UIR band. Coronene’s 8.8 µm feature which is also correlated with a UIR also shows substantial increases in intensity at elevated temperatures. The 10.5 µm feature of coronene which does not correlate with the UIR decreases sharply as the temperature is increased. These results as well as some possible implications are discussed.
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References
Allamandola, L. J., Tielens, A., and Barker, J. R.: 1985, Ap. J., 290, L25.
Bernard, J. P., d’Hendecourt, L. B., and Leger, A.: 1989, Astron. Astrophys., 220, 245.
Blanco, A., Borghesi, A., Fonti, S., Orofino, V., Bussoletti, E., and Colangeli, L.: 1988, in “Dust in the Universe”, M. E. Bailey and D. A. Williams ed. (Cambridge University Press, Cambridge).
Bregman, J. D., Allamandola, L. J., Tielens, A. G. G. M., Geballe, T. R., and Witteborn, F. C: 1989, Ap. J., 344, 791.
Duley, W. W., and Williams, D. A.: 1981, M.N.R.A.S., 196, 269.
Leger, A., and Puget, J. L.: 1984, Astr. Ap., 137, L5.
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© 1990 Kluwer Academic Publishers
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Flickinger, G.C., Wdowiak, T.J., Boyd, D.A. (1990). Astrophysical Implications of the Infrared Spectrum of Coronene at Elevated Temperatures. In: Bussoletti, E., Vittone, A.A. (eds) Dusty Objects in the Universe. Astrophysics and Space Science Library, vol 165. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0661-7_9
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DOI: https://doi.org/10.1007/978-94-009-0661-7_9
Publisher Name: Springer, Dordrecht
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