The survey of planetary nebulae in Andromeda (M 31) V. Chemical enrichment of the thin and thicker discs of Andromeda. Oxygen to argon abundance ratios for planetary nebulae and H II regions

Magda Arnaboldi, Souradeep Bhattacharya, Ortwin Gerhard, Chiaki Kobayashi, Kenneth C. Freeman, Nelson Caldwell, Johanna Hartke, Alan McConnachie, Puragra Guhathakurta

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Abstract

We use oxygen and argon abundances for planetary nebulae (PNe) with low internal extinction (progenitor ages of (>4.5 Gyr) and high extinction (progenitor ages
Original languageEnglish
Article numberA109
Number of pages14
JournalAstronomy & Astrophysics
Volume666
Early online date13 Oct 2022
DOIs
Publication statusPublished - 13 Oct 2022

Keywords

  • astro-ph.GA

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