标题： 河外resolved恒星群体的EAGLE光谱观测 显示英文标题

标题： EAGLE Spectroscopy of Resolved Stellar Populations Beyond the Local Group

摘要： 从当地宇宙中解析恒星群体的研究中可以获得关于星系演化的有价值的见解。深度 photometric 巡天已经为距离 0.8-16 兆秒差距的星系中的恒星形成历史提供了踪迹，但如果缺乏光谱提供的稳健化学丰度和恒星动力学信息，它们的次结构和聚合历史仍然对我们隐藏着。在此背景下，我们介绍了针对欧洲极大望远镜（E-ELT）的多积分场单元近红外光谱仪的 EAGLE 设计研究。EAGLE 将利用 E-ELT 无与伦比的集光能力，在一个大（38.5 平方角分）区域内提供 AO 校正光谱，真正革新我们对本地星系中恒星群体的看法。 显示英文摘要

摘要： Valuable insights into galaxy evolution can be gleaned from studies of resolved stellar populations in the local Universe. Deep photometric surveys have provided tracers of the star-formation histories in galaxies from 0.8-16 Mpc, but without robust chemical abundances and stellar kinematics from spectroscopy, their sub-structures and assembly histories remain hidden from us. In this context, we introduce the EAGLE design study for a multi--integral-field-unit, near-infrared spectrograph for the European Extremely Large Telescope (E-ELT). EAGLE will exploit the unprecedented light-gathering power of the E-ELT to deliver AO-corrected spectroscopy across a large (38.5 sq. arcmin) field, truly revolutionising our view of stellar populations in the Local Volume.