The survey of planetary nebulae in Andromeda (M31). V. Chemical enrichment of the thin and thicker discs of Andromeda: Oxygen to argon abundance ratios for planetary nebulae and HII regions

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

: 2022

DOI: https://doi.org/10.1051/0004-6361/202244258