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The Multiple Shell PN NGC 2438: Shell Modeling and the Influence of Different Central Star Models

Published online by Cambridge University Press:  26 May 2016

Birgit Armsdorfer ,
Stefan Kimeswenger  and
Thomas Rauch
Birgit Armsdorfer
Affiliation:
Institut für Astrophysik, Leopold-Franzens-Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria
Stefan Kimeswenger
Affiliation:
Institut für Astrophysik, Leopold-Franzens-Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria
Thomas Rauch
Affiliation:
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D-72076 Tübingen, Germany

Abstract

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Modeling the shells of multiple shell planetary nebulae using different model spectra for hot central stars, we found that a blackbody model leads to wrong nebular parameters. We model the density profile of the outer shells, varying the results of hydrodynamical simulations. This leads to a spatial excitation profile which reproduces well the observations.

Type
Part VII: Nebular Morphology and Dynamics
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 511 - 512
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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