APOGEE：阿帕奇点天文台星系演化实验
APOGEE: The Apache Point Observatory Galactic Evolution Experiment
摘要：
APOGEE是对银河系恒星进行的大规模、近红外、高分辨率（R~20，000）光谱巡天。它是SDSS-III中的四个实验之一。由于APOGEE将在H波段进行观测，这将是第一次穿透银河系尘埃的调查，并为所有银河系种群（凸起，盘和晕）的恒星提供一个巨大的，统一的化学丰度和径向速度数据库。这项调查将使用弗吉尼亚大学正在建造的专用300光纤低温光谱仪进行，该光谱仪与Apache Point天文台的ARC 2.5米望远镜耦合。APOGEE将利用SDSS-III在三年期间的大部分明亮时间，以高信噪比（S/N> 100）观测直接从2MASS中选出的大约100，000颗巨星，直到H <13的典型通量极限。APOGEE的主要科学目标是：（1）测量银河系不同恒星星族的无偏金属丰度分布和丰度模式，（2）研究银河系中恒星形成、反馈和化学混合的过程，（3）调查凸起和盘的动力学，限制银河系棒臂和旋臂的性质和影响，（4）利用广泛的化学动力学数据，特别是在银河系内部，来揭示它的形成和演化。
英文摘要：
APOGEE is a large-scale, NIR, high-resolution (R~20,000) spectroscopic survey of Galactic stars. It is one of the four experiments in SDSS-III. Because APOGEE will observe in the H band, it will be the first survey to pierce through Galactic dust and provide a vast, uniform database of chemical abundances and radial velocities for stars across all Galactic populations (bulge, disk, and halo). The survey will be conducted with a dedicated, 300-fiber, cryogenic, spectrograph that is being built at the University of Virginia, coupled to the ARC 2.5m telescope at Apache Point Observatory. APOGEE will use a significant fraction of the SDSS-III bright time during a three-year period to observe, at high signal-to-noise ratio (S/N>100), about 100,000 giant stars selected directly from 2MASS down to a typical flux limit of H<13. The main scientific objectives of APOGEE are: (1) measuring unbiased metallicity distributions and abundance patterns for the different Galactic stellar populations, (2) studying the processes of star formation, feedback, and chemical mixing in the Milky Way, (3) surveying the dynamics of the bulge and disk, placing constraints on the nature and influence of the Galactic bar and spiral arms, and (4) using extensive chemodynamical data, particularly in the inner Galaxy, to unravel its formation and evolution.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
