Number of items: 2.
Article
The survey of planetary nebulae in Andromeda (M31). IV. Radial oxygen and argon abundance gradients of the thin and thicker disc. (2022)
Souradeep Bhattacharya,
Magda Arnaboldi,
Nelson Caldwell,
Ortwin Gerhard,
Chiaki Kobayashi,
Johanna Hartke,
Kenneth C. Freeman,
Alan W. McConnachie
and
Puragra Guhathakurta
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. (2022)
Magda Arnaboldi,
Souradeep Bhattacharya,
Ortwin Gerhard,
Chiaki Kobayashi,
Kenneth C. Freeman,
Nelson Caldwell,
Johanna Hartke,
Alan McConnachie
and
Puragra Guhathakurta
This list was generated on Thu Jun 18 01:34:28 2026 BST.