Analysis reveals complexities in abundance determinations in planetary nebulae, suggesting careful treatment for accurate assessments.
Abundance determinations in planetary nebulae (PNe) are crucial for understanding stellar evolution and the chemical evolution of the host galaxy. We discuss the complications involved when the presence of a metal-rich phase is suspected in the nebula. We demonstrate that the presence of a cold region emitting mainly metal recombination lines necessitates a detailed treatment to obtain an accurate assessment of the enrichment of this cold gas phase.
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Morisset et al. (2023) studied this question.
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