极大望远镜上的spectroscopy策略。III -重新映射交换光纤系统
Strategies for spectroscopy on Extremely Large Telescope. III - Remapping switched fibre systems
摘要：
我们探索使用重映射技术，以提高天文光谱高度复用的光纤系统的效率。这是特别重要的实施不同的领域光谱学（DFS，在纸二）使用高度复用单片光纤系统（MFS）。多样场光谱学允许目标区域的任意分布，以优化观察复杂的星团结构时的观察效率，如原星团，这将越来越多地被极大望远镜（ELTS）所接近。我们将展示如何采用各种类型的单片光纤系统的输入和输出之间的重新映射可以允许连续的区域的空间元素被选择使用简单的开关阵列。最后，我们展示了如何比较这与积分场和多目标光谱学的效率，通过模拟使用人工和真实的目录的对象。通过采用这些映射策略，DFS在解决一系列现实目标分布时优于其他技术。这些技术也适用于生物医学科学，实际上是受其启发。
英文摘要：
We explore the use of remapping techniques to improve the efficiency of highly-multiplexed fibre systems for astronomical spectroscopy. This is particularly important for the implementation of Diverse Field Spectroscopy (DFS, described in Paper II) using highly-multiplexed monolithic fibre systems (MFS). Diverse Field Spectroscopy allows arbitrary distributions of target regions to be addressed to optimise observing efficiency when observing complex, clumpy structures such as protoclusters which will be increasingly accessible to Extremely Large Telescopes (ELTS). We show how the adoption of various types of remapping between the input and output of a Monolithic Fibre Systems can allow contiguous regions of spatial elements to be selected using only simple switch arrays. Finally we show how this compares in efficiency with integral-field and multiobject spectroscopy by simulations using artificial and real catalogues of objects. With the adoption of these mapping strategies, DFS outperforms other techniques when addressing a range of realistic target distributions. These techniques are also applicable to bio-medical science and were in fact inspired by it.
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