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2.5 Dimensional Radiative Transfer Modeling of Proto-Planetary Nebula Dust Shells with 2-DUST

Published online by Cambridge University Press:  26 May 2016

Toshiya Ueta  and
Margaret Meixner
Toshiya Ueta
Affiliation:
Department of Astronomy, MC-221, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA ueta@astro.uiuc.edu, meixner@astro.uiuc.edu
Margaret Meixner
Affiliation:
Department of Astronomy, MC-221, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA ueta@astro.uiuc.edu, meixner@astro.uiuc.edu

Abstract

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Our observing campaign of proto-planetary nebula (PPN) dust shells has shown that the structure formation in planetary nebulae (PNs) begins as early as the late asymptotic giant branch (AGB) phase due to intrinsically axisymmetric superwind. We describe our latest numerical efforts with a multi-dimensional dust radiative transfer code, 2-DUST, in order to explain the apparent dichotomy of the PPN morphology at the mid-IR and optical, which originates most likely from the optical depth of the shell combined with the effect of inclination angle.

Type
Part III: Planetary Nebulae in the Scheme of Stellar Evolution
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 141 - 142
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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