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The complex stellar system M 22: confirming abundance variations with high precision differential measurements
M. McKenzie, D. Yong, A. F. Marino +8
M 22 (NGC 6656) is a chemically complex globular cluster-like system reported to harbour heavy element abundance variations. However, the extent of these variations and the origin…
Stellar Population Astrophysics (SPA) with TNG, Fluorine abundances in seven open clusters
Shilpa Bijavara Seshashayana, Henrik Jönsson, Valentina D'Orazi +9
The age, evolution, and chemical properties of the Galactic disk can be effectively ascertained using open clusters. Within the large program Stellar Populations Astrophysics at th…
Peeking beneath the precision floor -- II. Probing the chemo-dynamical histories of the potential globular cluster siblings, NGC 288 and NGC 362
Stephanie Monty, David Yong, Davide Massari +8
The assembly history of the Milky Way (MW) is a rapidly evolving subject, with numerous small accretion events and at least one major merger proposed in the MW's history. Accreted…
Chemical Evolution of Fluorine in the Milky Way
Kate A. Womack, Fiorenzo Vincenzo, Brad K. Gibson +5
Fluorine has many different potential sites and channels of production, making narrowing down a dominant site of fluorine production particularly challenging. In this work, we inve…
Peeking beneath the precision floor I: metallicity spreads and multiple elemental dispersions in the globular clusters NGC 288 and NGC 362
Stephanie Monty, David Yong, Anna F. Marino +4
The view of globular clusters (GCs) as simple systems continues to unravel, revealing complex objects hosting multiple chemical peculiarities. Using differential abundance analysis…
Chemical Evolution with Radial Mixing Redux: Extending beyond the Solar Neighborhood
Boquan Chen, Michael R. Hayden, Sanjib Sharma +3
We present a multi-zone galactic chemical evolution (GCE) model for the Milky Way that takes the most recently updated yields of major nucleosynthesis channels into account. It inc…