Abundance determination in PNe: How to deal with large chemical inhomogeneities

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 regi...

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Bibliographic Details
Published in:arXiv.org 2023-11
Main Authors: Morisset, Christophe, Garcia-Rojas, Jorge, Gomez-Llanos, Veronica, Monteiro, Hektor
Format: Article
Language:English
Subjects:
Abundance
Chemical evolution
Cold gas
Planetary evolution
Planetary nebulae
Stellar evolution
Vapor phases
Online Access:Get full text
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Summary: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.
ISSN:2331-8422