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astro-ph.GA2026
The Galactic Phosphorus Survey. I. Chemical Evolution across the Galactic Disk from 750 FGK Stars
Dionysios Gakis, Keith Hawkins, Zachary G. Maas +5
Phosphorus (P) is an odd- element produced primarily in massive stars and is also important for planetary chemistry as an element essential to life. However, its evolution over…
astro-ph.GA2026
Barium Stars Across the Milky Way: Probing Their Origins via the GALAH Survey
Jaden Levine, Catherine Manea, Keith Hawkins +4
Barium stars are unusually enriched in barium ([Ba/Fe] >= 1.0 dex) and not predicted by current Galactic chemical evolution models. Previous observations of barium stars have found…