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Kentaro Motohara, Fumihide Iwamuro, Toshinori Maihara, Shin Oya, Hiroyuki Tsukamoto, Masatoshi Imanishi, Hiroshi Terada, Miwa Goto, Jun’ichi Iwai, Hirohisa Tanabe, Ryuji Hata, Tomoyuki Taguchi, Takashi Harashima, CISCO: Cooled Infrared Spectrograph and Camera for OHS on the Subaru Telescope, Publications of the Astronomical Society of Japan, Volume 54, Issue 2, 25 April 2002, Pages 315–325, https://doi.org/10.1093/pasj/54.2.315
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Abstract
This paper describes a Cooled Infrared Spectrograph and Camera for OHS (CISCO), mounted on the Nasmyth focus of the Subaru telescope. It is primarily designed as a back-end camera of the OH-Airglow Suppressor (OHS), and is also used as an independent, general-purpose near-infrared camera/spectrograph. CISCO is based on a single |$ 1024 \times 1024$| format HgCdTe HAWAII array detector, and is capable of either wide-field imaging of |$ {1\rlap {.}{}^{\mathrm {\prime }}8} \times {1\rlap {.}{}^{\mathrm {\prime }}8}$| field-of-view or low-resolution spectroscopy from 0.9 to 2.4 |$ {\mu \mathrm {m}}$|. The limiting magnitudes measured during test observations were found to be |$ J=23.5 \,\mathrm{mag}$| and |$ K^{\prime} = 22.4 \,\mathrm{mag}$| (imaging, |$ {1{}^{\mathrm {\prime \prime }}}$| aperture, |$ \mathrm{S} / \mathrm{N} = 5 $|, 1 hr exposure).