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Chemical compositions of planetary nebulae
Abstract
The chemical compositions of 41 planetary nebulae are established on the basis of an analysis of image tube scanner measurements, supplemented by IUE data. An attempt is made to calculate a theoretical model that gives satisfactory values of the observed intensities, as well as a number of excitation-sensitive ratios, in order to obtain ionization correction factors applicable to the ionic concentrations that will lead to total abundance values. The quality of individual nebular analyses varies, depending on the completeness and accuracy of the observational data and the complexity of the nebular structure. Quality estimates are assigned for each element in each nebula, and an overall reliability index is given to each object. It is concluded that the confidence with which one can speak of the chemical composition of a nebula varies significantly.
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A correlation is observed between Ne/H and O/H abundance in PNe in the Galaxy, LMC, SMC and M31.
“A correlation is observed to exist between the Ne/H and O/H abundance in PNe in the Galaxy, LMC, SMC and M31, within a small but probably real spread”
From The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars (2014) · cites this paper as Aller & Czyzak 1983
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The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars
Karakas, A. I., & Lattanzio, J. C. (2014) · Publications of the Astronomical Society of Australia · doi:10.1017/pasa.2014.21 · Cited by 735
“…is observed to exist between the Ne/H and O/H abundance in PNe in the Galaxy, LMC, SMC and M31, within a small but probably real spread (Kaler 1978; Aller & Czyzak 1983; Henry 1989; Dopita et al. 1997; Stasińska et al. 1998; Leisy & Dennefeld 2006; Stanghellini et al. 2000, 2006; Bernard-Salas et…”
Background
Metadata
- Authors
- Aller, L. H., & Czyzak, S. J.
- Venue
- The Astrophysical Journal Supplement Series
- Publisher
- American Astronomical Society
- Published
- 1983-02
- Volume
- 51
- Pages
- 211
- ISSN
- 0067-0049 (ISSN-L)
- 1538-4365
- OpenAlex
- W2089884523
- Cited by
- 187
- References
- 0
- Citations by year
- 2026: 2 · 2025: 7 · 2024: 3 · 2023: 2 · 2022: 1 · 2021: 2 · 2020: 2 · 2019: 3 · 2018: 4 · 2017: 2 · 2016: 1 · 2015: 2 · 2014: 5 · 2013: 1 · 2012: 2
- Type
- conference abstract
- Language
- en
- Open access
- closed
- Locations
- The Astrophysical Journal Supplement Series (publishedVersion)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
- Physical Sciences › Physics and Astronomy › Instrumentation › Astronomy and Astrophysical Research
- Keywords
- planetary nebulae, chemical composition, chemical abundances, ionization correction factors, nebular spectra, nebular structure, reliability index
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