Dome C的成像光谱学动机
Motivations for Imaging Spectroscopy at Dome C
摘要：
南极洲为地面观测提供了独特的条件，例如红外线的低天空背景，改善了能见度，以及低湍流和闪烁噪声。这些特性对成像、精密测光和红外观测特别有利。南极洲是否为光谱学提供了同样令人信服的优势，特别是在光学领域，这一点可能不太清楚。不过，利用成像（或三维）光谱学对红外线勘测进行选定的后续研究、对扩展目标进行长期监测以及在拥挤的场地进行分辨恒星星族研究的科学方案也受益于Dome C的场地条件。
英文摘要：
Antarctica offers unique conditions for ground-based observations, such as low sky background in the infrared, improved seeing, and low turbulence and scintillation noise. These properties are particularly beneficial to imaging, precision photometry, and infrared observations. It may be less clear if Antarctica offers equally compelling advantages for spectroscopy, in particular in the optical domain. However, scientific programmes that make use of imaging (or 3D) spectroscopy for selected follow-up studies of IR surveys, long-term monitoring of extended targets and resolved stellar population studies in crowded fields, also benefit from the site conditions at Dome C.
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