论文标题
VDBH 222中的红色苏植物分析
Analysis of Red-Supergiants in VdBH 222
论文作者
论文摘要
最近的调查发现了新的年轻大型群集（YMC），该集群以内部银河系为数十个红色超级巨人（RSG）。 这些簇非常适合研究内部银河系中最新和暴力的恒星形成事件。但是，由于影响银河平面的高消光，需要通过红外（IR）光谱研究它们。 RSG的红外光谱已被证明是获得化学丰度的强大工具。我们通过使用VLT/X-Shooter Spectra分析其RSG，为YMC VDBH 222提供了第一个[Fe $/$ H]测量（$ - 0.07 $ \ pm $ 0.02）。我们在此YMC中没有发现多个恒星种群（MSP）的证据，与在较旧的大型群集中通常观察到的相反。
Recent surveys uncovered new Young Massive Clusters (YMCs) that host dozens of Red Supergiants (RSGs) in the inner Milky Way. These clusters are ideal for studying the most recent and violent star formation events in the inner Galaxy. However, due to the high extinction that affects the Galactic plane, they need to be studied through infrared (IR) spectroscopy. IR spectra of RSGs have proven to be powerful tools for obtaining chemical abundances. We present the first [Fe$/$H] measurement ($-$0.07$\pm$0.02) for the YMC VdBH 222 through analysis of its RSGs using VLT/X-shooter spectra. We find no evidence for Multiple Stellar Populations (MSPs) in this YMC, contrary to what is routinely observed in older massive clusters.
