TRISPEC: A Simultaneous Optical and Near‐Infrared Imager, Spectrograph, and Polarimeter
TRISPEC: A Simultaneous Optical and Near‐Infrared Imager, Spectrograph, and Polarimeter
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DOI：
10.1086/431914
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发表时间：
2005-07
影响因子：
3.5
通讯作者：
Makoto Watanabe;H. Nakaya;T. Yamamuro;Takahiro Zenno;M. Ishii;M. Okada;A. Yamazaki;Yusuke Yamanaka-Yusuke
中科院分区：
文献类型：
--
作者：
Makoto Watanabe;H. Nakaya;T. Yamamuro;Takahiro Zenno;M. Ishii;M. Okada;A. Yamazaki;Yusuke Yamanaka-Yusuke
本文介绍了一种同时使用光学和近红外成像仪、光谱仪和偏振仪的三重距离成像仪(Triple Range Imager And Spectrgraph)的设计、结构和性能。该仪器通过两个二向色镜将来自望远镜的入射光分成三束--一个光学通道(0.45-0.90μm)和两个红外通道(0.90-1.85和1.85-2.5μm)。它能够同时进行三个波段的成像或光谱分析，使用或不使用偏振测量。低分辨率格栅(R∼70-360)同时覆盖了0.46-2.5μm的宽波长范围。该仪器采用三个阵列--一个512×512点的电荷耦合器件和两个256×256的SBRC InSb阵列--来覆盖三个通道。自1999年6月以来，它已在英国红外线望远镜、夏威夷大学2.2米望远镜和冈山天体物理天文台1.88米望远镜上以成像、光谱和偏振模式投入使用。
We present the design, construction, and performance of TRISPEC (Triple Range Imager and Spectrograph), a simultaneous optical and near‐infrared imager, spectrograph, and polarimeter. This instrument splits the incoming light from a telescope into the three beams—one optical channel (0.45–0.90 μm) and two infrared channels (0.90–1.85 and 1.85–2.5 μm)—by means of two dichroic mirrors. It is capable of simultaneous three‐band imaging or spectroscopy, with or without polarimetry. Low‐resolution grisms (R∼70–360) cover a wide wavelength range of 0.46–2.5 μm, simultaneously. The instrument employs three arrays—one 512 × 512 SITe CCD and two 256 × 256 SBRC InSb arrays—to cover the three channels. It has been commissioned in the imaging, spectroscopic, and polarimetric modes on the United Kingdom Infrared Telescope, the University of Hawaii 2.2 m telescope, and the Okayama Astrophysical Observatory 1.88 m telescope since 1999 June.