TY - JOUR
T1 - Multi-object infrared camera and spectrograph (MOIRCS) for the Subaru telescope I. Imaging
AU - Suzuki, Ryuji
AU - Tokoku, Chihiro
AU - Ichikawa, Takashi
AU - Uchimoto, Yuka Katsuno
AU - Konishi, Masahiro
AU - Yoshikawa, Tomohiro
AU - Tanaka, Ichi
AU - Yamada, Toru
AU - Omata, Koji
AU - Nishimura, Tetsuo
PY - 2008
Y1 - 2008
N2 - MOIRCS is a fully cryogenic near-infrared instrument for the 8.2 m Subaru Telescope. MOIRCS has two observation modes: a wide-field imaging mode and a multiobject spectroscopy mode. This paper describes the imaging mode, its specifications, and actual performances that we confirmed through laboratory tests and commissioning observations. The imaging mode provides a 4′ × 7′ field of view with a pixel scale of 0″. 17 pixel -1 in the wavelength range of 0.85 to 2.5 μm using cooled optics and two 2048 × 2048 HgCdTe HAWAII-2 focal plane arrays. Good-quality images are obtained over the entire field of view with practically no chromatic aberration. The limiting magnitudes for a point source estimated from observed background brightness and throughput are 23.7 in the J band, 23.0 in the H band, and 22.6 in the Ks band (Vega) with S/N = 5, 0″.5 seeing, 1″.0 aperture, and 1 hr exposure.
AB - MOIRCS is a fully cryogenic near-infrared instrument for the 8.2 m Subaru Telescope. MOIRCS has two observation modes: a wide-field imaging mode and a multiobject spectroscopy mode. This paper describes the imaging mode, its specifications, and actual performances that we confirmed through laboratory tests and commissioning observations. The imaging mode provides a 4′ × 7′ field of view with a pixel scale of 0″. 17 pixel -1 in the wavelength range of 0.85 to 2.5 μm using cooled optics and two 2048 × 2048 HgCdTe HAWAII-2 focal plane arrays. Good-quality images are obtained over the entire field of view with practically no chromatic aberration. The limiting magnitudes for a point source estimated from observed background brightness and throughput are 23.7 in the J band, 23.0 in the H band, and 22.6 in the Ks band (Vega) with S/N = 5, 0″.5 seeing, 1″.0 aperture, and 1 hr exposure.
KW - Infrared: general
KW - Instrumentation: Detectors
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U2 - 10.1093/pasj/60.6.1347
DO - 10.1093/pasj/60.6.1347
M3 - Article
AN - SCOPUS:60049088464
VL - 60
SP - 1347
EP - 1362
JO - Publications of the Astronomical Society of Japan
JF - Publications of the Astronomical Society of Japan
SN - 0004-6264
IS - 6
ER -