论文标题
25 JWST系外行星宿主星的化学丰度与Keckspec
Chemical Abundances for 25 JWST Exoplanet Host Stars with KeckSpec
论文作者
论文摘要
Using a data-driven machine learning tool we report $T_{\text{eff}}$, $\log{(g)}$, $v\sin{(i)}$, and elemental abundances for 15 elements (C, N, O, Na, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Ni, Y) for a sample of 25 exoplanet host stars targeted by JWST的观察第一年。这些恒星的化学多样性表明，尽管他们的许多同伴行星可能在具有类似太阳能的化学性质的磁盘中形成，但一些JWST目标可能会经历不同的磁盘组成。该样本是即将到来的较大目录的一部分，该目录将报告属于Keck/Hires Spectra衍生的$ \ SIM $ \ sim $ \ sim $ \ sim。
Using a data-driven machine learning tool we report $T_{\text{eff}}$, $\log{(g)}$, $v\sin{(i)}$, and elemental abundances for 15 elements (C, N, O, Na, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Ni, Y) for a sample of 25 exoplanet host stars targeted by JWST's first year of observations. The chemical diversity of these stars show that, while a number of their companion planets may have formed in a disk with chemistry similar to Solar, some JWST targets likely experienced different disk compositions. This sample is part of a larger forthcoming catalog that will report homogeneous abundances of $\sim$4,500 FGK stars derived from Keck/HIRES spectra.
