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Dust Properties of Planetary Nebulae

Published online by Cambridge University Press:  26 May 2016

Stefan Kimeswenger
Stefan Kimeswenger*
Affiliation:
Institut für Astrophysik, Leopold–Franzens Universität Innsbruck, Technikerstraße 25, A-6020 Innsbruck, AUSTRIA

Abstract

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Shells of planetary nebulae (PNe) are usually modeled applying photoionization only although there is a significant fraction of dust embedded in the nebular shells. The calculated temperature and dust-to-gas ratio from IRAS colors is “faked” by the IR flux continuum contribution from the gas and by transiently heated dust grains. Also the effects of grain growth time and thus maximum grain size lead to strong deviations from the model input values, adopting the IRAS data fits.

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. 289 - 290
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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