Potassium Abundances in Extremely Metal Poor Stars: Implications for Nucleosynthesis in the Final Stages of Massive Star Evolution

We present a potassium (K) abundance analysis in extremely metal-poor (EMP) stars based on high-resolution ( R  ∼ 60,000) spectra obtained with the High Dispersion Spectrograph on the Subaru Telescope, covering the K i resonance lines at 766 and 769 nm. One-dimensional local thermodynamic equilibriu...

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Autors principals:	Miho N. Ishigaki, Nozomu Tominaga, Wako Aoki, Shinya Wanajo, Tomoya Takiwaki, Ko Nakamura, Nobuyuki Iwamoto, Ken’ichi Nomoto, Chiaki Kobayashi
Format:	Artigo
Idioma:	Inglês
Publicat:	IOP Publishing 2025-01-01
Col·lecció:	The Astrophysical Journal
Matèries:	Galactic archaeology Nucleosynthesis Late stellar evolution Core-collapse supernovae
Accés en línia:	https://doi.org/10.3847/1538-4357/ae00b8
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