Scientific instrumentation for the 1.6 m New Solar Telescope in Big Bear
Scientific instrumentation for the 1.6 m New Solar Telescope in Big Bear
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DOI：
10.1002/asna.201011390
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发表时间：
2010-07-01
影响因子：
0.9
通讯作者：
Goode, P. R.
中科院分区：
文献类型：
--
作者：
Cao, W.;Gorceix, N.;Goode, P. R.
新太阳望远镜（NST）是一个1.6米口径的离轴望远镜，目前正处于大熊太阳天文台（BBSO）的调试阶段。它将是美国最强大、最大口径的太阳望远镜，直到4米先进技术太阳望远镜（ATST）在下一个十年的后期上线。NST将配备最先进的科学仪器，在望远镜地板上的内斯密斯焦点和望远镜下面的库德实验室。在Nasmyth焦点上，在相关跟踪器和图像重建系统的帮助下，已经在常规操作的几个滤光片在TiO 706 nm， H α 656nm， g波段430 nm和近红外（NIR）波段提供了高空间分辨率的光度测量。此外，低温红外光谱仪（CYRA）正在开发中，以提供1.0到5.0 μ m的高信噪比光谱和偏振测量。Coude实验室的仪器将包括自适应光学（AO）、红外成像磁仪（IRIM）、可见成像磁仪（VIM）和快速成像太阳光谱仪（FISS）。308子孔径（349致动器变形镜）AO系统将使NST的主要工作波长从0.4 μ m到1.7 μ m的衍射极限观测成为可能。IRIM和VIM是基于Fabry-Perot的窄带可调滤光片，分别在近红外和可见光中提供高分辨率的二维光谱和偏振成像。FISS是BBSO和首尔国立大学的合作项目，专注于色球动力学。本文报告了这些仪器的最新进展，包括每种仪器的概述以及NST设计，集成，校准和设置/测试的当前状态的详细信息。(C) 2010 WILEY-VCH Verlag GmbH & Co., KGaA, Weinheim
The NST (New Solar Telescope), a 1.6 m clear aperture, off-axis telescope, is in its commissioning phase at Big Bear Solar Observatory (BBSO). It will be the most capable, largest aperture solar telescope in the US until the 4 m ATST (Advanced Technology Solar Telescope) collies on-line late in the next decade. The NST will be outfitted with state-of-the-art scientific instruments at the Nasmyth focus on the telescope floor and in the Coude Lab beneath the telescope. At the Nasmyth focus, several filtergraphs already in routine operation have offered high spatial resolution photometry in TiO 706 nm, H alpha 656 nm, G-band 430 nm and the near infrared (NIR), with the aid of a correlation tracker and image reconstruction system. Also, a Cryogenic Infrared Spectrograph (CYRA) is being developed to supply high signal-to-noise-ratio spectrometry and polarimetry spanning 1.0 to 5.0 mu m. The Coude Lab instrumentation will include Adaptive Optics (AO), InfraRed imaging Magnetograph (IRIM), Visible Imaging Magnetograph (VIM), and Fast imaging Solar Spectrograph (FISS). A 308 sub-aperture (349-actuator deformable mirror) AO system will enable nearly diffraction limited observations over the NST's principal operating wavelengths from 0.4 mu m through 1.7 mu m. IRIM and VIM are Fabry-Perot based narrow-band tunable filters, which provide high resolution two-dimensional spectroscopic and polarimetric imaging in the NIR and visible respectively. FISS is a collaboration between BBSO and Seoul National University focussing on chromosphere dynamics. This paper reports the up-to-date progress on these instruments including an overview of each instrument and details of the current state of design, integration, calibration and setup/testing on the NST. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim