Iron-peak Element Abundances in Warm Very Metal-poor Stars

Iron-peak Element Abundances in Warm Very Metal-poor Stars

We have derived new detailed abundances of Mg, Ca, and the Fe-group elements Sc through Zn ( Z = 21−30) for 37 main-sequence turnoff very metal-poor stars ([Fe/H] ≲−2.1). We analyzed Keck HIRES optical and near-UV high signal-to-noise spectra originally gathered for a Be abundance survey. Using typi...

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Bibliographic Details
Main Authors: Christopher Sneden, Ann Merchant Boesgaard, John J. Cowan, Ian U. Roederer, Elizabeth A. Den Hartog, James E. Lawler
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Nucleosynthesis
Chemical abundances
Population II stars
Stellar spectral lines
Online Access:https://doi.org/10.3847/1538-4357/accd62

Internet

https://doi.org/10.3847/1538-4357/accd62

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