The complex stellar system M 22: confirming abundance variations with high precision differential measurements

arXiv:2607.14065 · astro-ph.GA · Submitted 2026-07-15 · Read on arXiv

M. McKenzie, D. Yong, A. F. Marino, S. Monty, E. Wang, A. I. Karakas, A. P. Milone, M. V. Legnardi, I. U. Roederer, S. Martell, D. Horta

astro-ph.GA

Submitted: 2026-07-15

Comments: 18 pages, 10 figures, 7 tables. Published in MNRAS

Journal ref: MNRAS, 516, 3515-3531 (2022)

DOI: 10.1093/mnras/stac2254

Code: https://github.com/vmplacco/linemakehttps:

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 137× in this paper · explained in 1 episode
• Metallicity — 21× in this paper · explained in 3 episodes
• Anti-correlation — 4× in this paper · explained in 3 episodes
• Milky Way — 4× in this paper
• Benchmark — 2× in this paper · explained in 2 episodes
• alpha — 2× in this paper · explained in 1 episode
• Accuracy — 1× in this paper · explained in 1 episode
• Activation Function — 1× in this paper · explained in 1 episode
• Aperture — 1× in this paper · explained in 1 episode
• European Research Council — 1× in this paper
• Hubble Space Telescope — 1× in this paper
• Trace — 1× in this paper · explained in 2 episodes

Sources

• New Grids of ATLAS9 Model Atmospheres
• Are the globular clusters with significant internal [Fe/H] spreads all former dwarf galaxy nuclei?
• Chemical abundances of multiple stellar populations in massive globular clusters
• Milky Way's eccentric constituents with $Gaia$, APOGEE $\&$ GALAH

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