Age of FGK Dwarfs Observed with LAMOST and GALAH: Considering the Oxygen Enhancement

Varying oxygen abundance could impact modeling-inferred ages. This work aims to estimate the ages of dwarfs considering observed oxygen abundance. To characterize 67,503 LAMOST and 4006 GALAH FGK-type dwarf stars, we construct a grid of stellar models, which take into account oxygen abundance as an...

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Hlavní autoři:	Tiancheng Sun, Zhishuai Ge, Xunzhou Chen, Shaolan Bi, Tanda Li, Xianfei Zhang, Yaguang Li, Yaqian Wu, Sarah A. Bird, J. W. Ferguson, Jianzhao Zhou, Lifei Ye, Liu Long, Jinghua Zhang
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	IOP Publishing 2023-01-01
Edice:	The Astrophysical Journal Supplement Series
Témata:	Stellar abundances Stellar ages Stellar kinematics Milky Way disk Fundamental parameters of stars
On-line přístup:	https://doi.org/10.3847/1538-4365/ace5b0
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