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Dust Features in Carbon-rich Planetary Nebulae

Published online by Cambridge University Press:  26 May 2016

Albertina Pei  and
Kevin Volk
Albertina Pei
Affiliation:
Dept. Physics and Astronomy, University of Calgary
Kevin Volk
Affiliation:
Dept. Physics and Astronomy, University of Calgary

Extract

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Carbon-rich AGB stars, protoplanetary nebulae (PPNe), and PNe show a variety of dust features attributed to carbon-based compounds. Of particular interest are the three dust features peaking near 21, 26 and 33 μm. The 26 and 33 μm features (collectively the “30 μm feature”; see Volk et al. 2002) are always observed together. The 21 μm feature is weak in the AGB phase and becomes more prominent in the PPN phase, which implies carrier evolution. We wish to see how this evolution continues into the PN phase from detailed modelling of the infrared spectra of PNe.

Type
Part V: Dust and Molecules in Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 305 - 306
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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