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arXiv 0709.3970astro-ph
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积分场摄谱仪:用户的观点

Integral Field Spectrographs: a user's view

Eric Emsellem

摘要:

我们很容易倾向于沿着两个相反的趋势来看待积分场光谱仪(IFS):要么是光度学和光谱学之间的美丽组合,要么是我们最糟糕的噩梦,包括两个世界的黑暗面。我赞成这样一种观点,即每个IFS都被单独考虑,作为一种具有特定性能的仪器,可以最佳地用于一定范围的科学计划。事实上,在数据方面,IFS有时确实合并了经典的特征(例如,长缝)光谱仪与恼人的问题与成像仪。事实上,这是为了获得我们最喜欢的目标的完全不同的视角而付出的代价。接下来的挑战是提供适当处理相应数据的必要工具。然而,这当然不应该被认为是IFS特有的:任何仪器都应该接受这样的挑战,最重要的是在望远镜交付之前解决。

英文摘要:

We easily tend to think of Integral-Field Spectrographs (IFS) along two opposing trends: as either the beautiful combination between photometry and spectroscopy, or as our worst nightmare including the dark side of both worlds. I favour a view where each IFS is considered individually, as one instrument with specific performances which can be used optimally for a certain range of scientific programs. It is indeed true that data-wise, IFS do sometime merge the characteristics of classic (e.g., long-slit) spectrographs with annoying issues associated with Imagers. This is in fact the price to pay to access a drastically different perspective of our favourite targets. The challenge is then to provide the necessary tools to properly handle the corresponding data. However, this should certainly not be thought as something specific to IFS: such a challenge should be accepted for any instrument, and most importantly solved prior to its delivery at the telescope.

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。

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