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首页> 外文会议>Conference on ground-based and airborne instrumentation for astronomy IV >The development of WIFIS: a wide integral field infraredspectrograph
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The development of WIFIS: a wide integral field infraredspectrograph

机译：WIFIS的发展：宽积分红外光谱仪

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We present the current results from the development of a wide integral field infrared spectrograph (WIFIS). WIFIS offers an unprecedented combination of etendue and spectral resolving power for seeing-limited, integral field observations in the 0.9 - 1.8 μm range and is most sensitive in the 0.9 - 1.35 μ,m range. Its optical design consists of front-end re-imaging optics, an all-reflective image slicer-type, integral field unit (IFU) called FISICA, and a long-slit grating spectrograph back-end that is coupled with a HAWAII 2RG focal plane array. The full wavelength range is achieved by selecting between two different gratings. By virtue of its re-imaging optics, the spectrograph is quite versatile and can be used at multiple telescopes. The size of its field-of-view is unrivalled by other similar spectrographs, offering a 4.511x 1211 integral field at a 10-meter class telescope (or2011 x 5011 at a 2.3-meter telescope). The use of WIFIS will be crucial in astronomical problems which requirewide-field, two-dimensional spectroscopy such as the study of merging galaxies at moderate redshift and nearby star/planet-forming regions and supernova remnants. We discuss the final optical design of WIFIS, and its predicted on-sky performance on two reference telescope platforms: the 2.3-m Steward Bok telescope and the10.4-m Gran Telescopio Canarias. We also present the results from our laboratory characterization of FISICA.IFU properties such as magnification, field-mapping, and slit width along the entire slit length were measured by our tests. The construction and testing of WIFIS is expected to be completed by early 2013. We plan to commission the instrument at the 2.3-m Steward Bok telescope at Kitt Peak, USA in Spring 2013.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译：我们介绍了宽积分红外光谱仪（WIFIS）的开发成果。 WIFIS提供了集光率和光谱分辨能力的前所未有的组合，用于在0.9-1.8μm的范围内进行有限的整体场观测，并且在0.9-1.35μm的范围内最敏感。其光学设计包括前端重成像光学元件，全反射图像切片器型，称为FISICA的积分场单元（IFU）和与HAWAII 2RG焦平面耦合的长缝光栅光谱仪后端大批。整个波长范围是通过在两个不同的光栅之间进行选择来实现的。凭借其重新成像光学系统，该光谱仪具有多种用途，可用于多台望远镜。其视场的大小是其他类似光谱仪无法比拟的，在10米级望远镜上可提供4.511x 1211积分场（在2.3米望远镜下可提供2011 x 5011）。 WIFIS的使用对于需要广域二维光谱的天文问题至关重要，例如研究中度红移和附近恒星/行星形成区域以及超新星残骸合并星系的研究。我们讨论了WIFIS的最终光学设计，以及它在两个参考望远镜平台上的预测空中性能：2.3米的Steward Bok望远镜和10.4米的Gran Telescopio Canarias。我们还介绍了我们对FISICA进行实验室表征的结果.IFU特性（如放大率，场映射和沿着整个狭缝长度的狭缝宽度）通过我们的测试进行了测量。 WIFIS的建设和测试有望在2013年初完成。我们计划在2013年春季在美国基特峰的2.3米Steward Bok望远镜上调试该仪器。©（2012）COPYRIGHT光电仪器工程师协会（SPIE）。摘要的下载仅允许个人使用。

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