Chemical abundances of field halo stars - Implications for the building blocks of the Milky Way
Chemical abundances of field halo stars - Implications for the building blocks of the Milky Way
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DOI：
10.1017/s1743921319007865
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发表时间：
2019-05
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影响因子：
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通讯作者：
M. Ishigaki
中科院分区：
文献类型：
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作者：
M. Ishigaki
摘要我想回顾一下最近对银河系晕星的详细化学丰度测量的工作。由于从太阳到几千秒差距的宽视场光谱测量的出现，具有详细化学测量的场晕星的大样本正在不断扩大。化学信息和全六维相空间信息的结合，现在被认为是一个强大的工具，以确定宇宙吸积事件，已经建立了相当大的一部分，现在的恒星晕。未来的观测前景与宽场光谱调查和理论前景与超新星核合成产额进行了讨论。
Abstract I would like to review recent efforts of detailed chemical abundance measurements for field Milky Way halo stars. Thanks to the advent of wide-field spectroscopic surveys up to a several kpc from the Sun, large samples of field halo stars with detailed chemical measurements are continuously expanding. Combination of the chemical information and full six dimensional phase-space information is now recognized as a powerful tool to identify cosmological accretion events that have built a sizable fraction of the present-day stellar halo. Future observational prospects with wide-field spectroscopic surveys and theoretical prospects with supernova nucleosynthetic yields are also discussed.