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Proceedings Paper

SIRIUS: a near-infrared simultaneous three-band camera
Author(s): Takahiro Nagayama; Chie Nagashima; Yasushi Nakajima; Tetsuya Nagata; Shuji Sato; Hidehiko Nakaya; Tomoyasu Yamamuro; Koji Sugitani; Motohide Tamura
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Paper Abstract

We developed a near infrared simultaneous three-band (J, H and Ks) camera, SIRIUS. The design of SIRIUS is optimized to deep, large area surveys in the three IR bands. SIRIUS is equipped with three 1024 x 1024 HgCdTe (HAWAII) arrays, providing simultaneous three-band images. SIRIUS has obtained its first light on the UH 2.2 m telescope in August 2000. SIRIUS is now mounted on the IRSF 1.4 m telescope in Sutherland and is dedicated to deep survey in the southern sky from November 2000. On this telescope, SIRIUS provides 7'.8 x 7'.8 field of view with a pixel scale of 0".45 in all bands. The typical limiting magnitudes are J = 19.2 mag, H = 18.6 mag, Ks = 17.3 mag (15 min. integration, S/N = 10 σ). The effective exposure time (30 sec exposure for each frame) in an hour is about 37 minutes (60%) for each band. Both the instrument and the 1.4 m telescope are in operation.

Paper Details

Date Published: 7 March 2003
PDF: 6 pages
Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.460770
Show Author Affiliations
Takahiro Nagayama, Nagoya Univ. (Japan)
Chie Nagashima, Nagoya Univ. (Japan)
Yasushi Nakajima, Nagoya Univ. (Japan)
Tetsuya Nagata, Nagoya Univ. (Japan)
Shuji Sato, Nagoya Univ. (Japan)
Hidehiko Nakaya, Subaru Telescope/NAOJ (United States)
Tomoyasu Yamamuro, Genesia Corp. (Japan)
Koji Sugitani, Institute of Natural Sciences/Nagoya City Univ. (Japan)
Motohide Tamura, National Astronomical Observatory of Japan (United States)

Published in SPIE Proceedings Vol. 4841:
Instrument Design and Performance for Optical/Infrared Ground-based Telescopes
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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