The curious conundrum regarding sulfur and oxygen abundances in planetary nebulae
classification
🌌 astro-ph.GA
keywords
sulfurnebulaeplanetaryabundanceabundancesanomalyappearscarefully
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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.
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