Revealing the history of the Milky Way Galaxy through precision stellar spectroscopy
Revealing the history of the Milky Way Galaxy through precision stellar spectroscopy
批准号:
FT140100554
负责人:
Dr David Yong
金额:
$45.82万
依托单位国家:
澳大利亚
项目类别:
ARC Future Fellowships
财政年份:
2015
资助国家:
澳大利亚
项目状态:
已结题
起止时间:
2015-01-01 至 2019-12-31
中文摘要
银河系是如何形成的?这个基本问题的答案在于恒星的化学成分。澳大利亚和国际社会对最先进的设施和调查的巨大投资将产生100万颗恒星样本用于化学分析。为了从这些调查中充分获取信息,需要尽可能精确地测量恒星的化学成分。该项目旨在使用最近开创的分析技术,该技术已将恒星化学丰度测量领域的精度提高到前所未有的2%(提高了5倍),以绘制我们银河系在宇宙时间内的演化图。
英文摘要
How did the Milky Way Galaxy form? The answer to this fundamental question lies in the chemical compositions of stars. Enormous investments by the Australian and international community into state-of-the-art facilities and surveys will yield a 1 million star sample for chemical analysis. To fully harvest the information from those surveys requires stellar chemical composition measurements of the highest possible precision. This project aims to use recently pioneered analysis techniques that have led the field of chemical abundance measurements in stars to the unprecedented precision level of 2 per cent (a five-fold improvement) to chart the evolution of our Galaxy over cosmic time.
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