Strategies for spectroscopy on extremely large telescopes – III. Remapping switched fibre systems
Strategies for spectroscopy on extremely large telescopes – III. Remapping switched fibre systems
复制标题
超大望远镜的光谱策略 – III。
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
G. Murray
中科院分区：
文献类型：
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作者：
C. Poppett;J. Allington;G. Murray
我们探索使用重映射技术来提高天文光谱高复用光纤系统的效率。这对于使用高复用单片光纤系统（MFS）实现多场光谱（DFS）尤为重要。DFS允许任意分布的目标区域，以优化观测效率，当观测复杂的，团块结构，如原星团，将越来越多地进入到超大望远镜。我们展示了如何在MFS的输入和输出之间采用各种类型的重新映射，从而允许仅使用简单的开关阵列来选择空间元素的连续区域。最后，我们通过使用人工和真实的天体目录进行模拟，展示了这种方法与积分场和多目标光谱的效率比较。通过采用这些映射策略，DFS在处理一系列实际目标分布时优于其他技术。这些技术也适用于生物医学，实际上是受到生物医学的启发。
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) using highly multiplexed monolithic fibre systems (MFS). DFS allows arbitrary distributions of target regions to be addressed to optimize observing efficiency when observing complex, clumpy structures such as protoclusters which will be increasingly accessible to extremely large telescopes. We show how the adoption of various types of remapping between the input and output of an MFS 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 multi-object 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 biomedical science and were in fact inspired by it.