Abstract
We carefully consider numerous explanations for the sulfur abundance anomaly in planetary nebulae. No one rationale appears to be satisfactory, and we suggest that the ultimate explanation is likely to be a heretofore unidentified feature of the nebular gas which significantly impacts the sulfur ionization correction factor.
Original language | English |
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Title of host publication | Planetary Nebulae |
Subtitle of host publication | An Eye to the Future |
Pages | 384-385 |
Number of pages | 2 |
Edition | S283 |
DOIs | |
State | Published - Jul 2011 |
Publication series
Name | Proceedings of the International Astronomical Union |
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Number | S283 |
Volume | 7 |
ISSN (Print) | 1743-9213 |
ISSN (Electronic) | 1743-9221 |
Bibliographical note
Funding Information:We gratefully acknowledge support from the US-NSF (RBCH, GJF) and the NCI National Facility at the Australian National University (AIK). We also thank Matthew Hosak for computing the photoionization models and Karen Kwitter for the use of her PN database.
Keywords
- AGB and post-AGB stars
- abundances
- planetary nebulae
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science