小规模的英雄：武仙座矮球状体中的恒星富集
Small-scale hero: massive-star enrichment in the Hercules dwarf spheroidal
摘要：
矮球状星系通常被认为是第一批恒星的所在地。目前，寻找这些大质量天体浓缩过程中的化学印记的最佳竞争者是“超微弱矮星”（UFD）。在这里，我们提出的证据显着低的重元素丰度的金属穷人大力士UFD。结合其他特殊的丰度模式，这表明武仙座可能只受到很少的大规模爆炸事件的影响-因此带有早期局部化学富集的痕迹，只有很少的其他贡献来自其他来源。
英文摘要：
Dwarf spheroidal galaxies are often conjectured to be the sites of the first stars. The best current contenders for finding the chemical imprints from the enrichment by those massive objects are the "ultrafaint dwarfs" (UFDs). Here we present evidence for remarkably low heavy element abundances in the metal poor Hercules UFD. Combined with other peculiar abundance patterns this indicates that Hercules was likely only influenced by very few, massive explosive events - thus bearing the traces of an early, localized chemical enrichment with only very little other contributions from other sources at later times.
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