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Photoionization Models of Chemically Inhomogeneous Planetary Nebulae

Published online by Cambridge University Press:  26 May 2016

Romuald Tylenda
Romuald Tylenda*
Affiliation:
Department for Astrophysics, N. Copernicus Astronomical Centre, Rabiańska 8, 87-100 Toruń, Poland

Abstract

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We have constructed photoionization models of NGC 6153, M 2–36, and M1–42. These planetary nebulae show large differences, both, in the CNO and Ne abundances as derived from recombination lines and collisionally excited lines, as well as, in the electron temperature determined from Balmer jump and [OIII] lines. The model nebulae have low mass (about 1% of the total nebular mass) inclusions where the CNO and Ne abundances are enhanced by a factor of 200 or so.

Type
Part VI: The Ionized Gas in Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 389 - 390
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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