#chemical evolution

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4 papers match

astro-ph.GA2026

Stellar Population Astrophysics (SPA) with the TNG. Beyond the iron peak: Galactic evolution of molybdenum, ruthenium and zirconium through open clusters

Natalia Alvarez-Baena, Valentina D'Orazi, Christopher Sneden +11

The paper measures molybdenum, ruthenium, and zirconium abundances in 81 stars from 30 open clusters using high‑resolution HARPS‑N spectra to investigate the Galactic chemical evol…

#open clusters#chemical evolution#s‑process nucleosynthesis#heavy elements
astro-ph.GA2026

The complex stellar system M 22: constraining the chemical enrichment from AGB stars using magnesium isotope ratios

M. McKenzie, D. Yong, A. I. Karakas +8

The paper measures magnesium isotope ratios in the globular‑cluster-like system M 22 and finds that low‑mass (1–3 M☉) AGB stars can explain its s‑process enrichment, while higher‑m…

#globular clusters#stellar nucleosynthesis#magnesium isotopes#AGB stars
astro-ph.GA2026

Magnesium isotope ratios in Milky Way and dwarf galaxy stars

M. McKenzie, S. Monty, D. Yong +8

The paper measures magnesium isotope ratios in stars from dwarf galaxies and the Milky Way, finding distinct patterns at fixed iron abundance but similar ratios at fixed magnesium…

#galactic archaeology#stellar nucleosynthesis#magnesium isotopes#dwarf galaxies
astro-ph.GA2026

A Unified Framework Connecting Chemical Enrichment to Resolved Star Formation Histories with Applications to Local Group Dwarf Irregulars

Christopher T. Garling, Alex M. Garcia, Niusha Ahvazi +4

The paper introduces a framework that combines resolved star formation histories with chemical evolution models to trace the metallicity growth of dwarf galaxies, and applies it to…

#chemical evolution#star formation histories#dwarf galaxies#metallicity

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