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Proceedings Paper

Science with SIRIUS: simultaneous-color infrared imager for unbiased surveys
Author(s): Yasushi Nakajima; Motohide Tamura; Chie Nagashima; Takahiro Nagayama; Daisuke Baba; Koji Sugitani; Hidehiko Nakaya; Tetsuya Nagata; Daisuke Kato; Mikio Kurita; Shuji Sato; Zhibo Jiang; Yoshifusa Ita; Toshihiko Tanabe; Yoshikazu Nakata; Takashi Naoi; Yumiko Oasa
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Paper Abstract

Some results from the near infrared camera SIRIUS are presented. SIRIUS is designed for deep and wide JHKs-bands simultaneous surveys, being equipped with three science-grade HAWAII (1024×1024) arrays. SIRIUS is attached on a dedicated 1.4m telescope (IRSF) at Sutherland observatory in South Africa. The field of view is 7.8'×7.8', the pixel scale is 0.45", and the limiting magnitude is J=19.2, H=18.6, Ks=17.3 (S/N=10σ and 15minutes integration) with the 1.4m telescope. The survey of southern sky began in November 2000. SIRIUS was also used on the University of Hawaii 2.2m telescope at Mauna Kea for three times in August 2000, October 2000, and September 2001. Surveys of several northern sky areas were done. Unbiased deep survey for 6 degree square area of Large Magellanic Cloud (LMC) is one of the key programs with the 1.4m telescope. Several clusters of intermediate mass YSO candidates have been discovered so far. Monitoring surveys of several selected areas of LMC have also been carried out for detection of variable stars. The other main science programs of SIRIUS are deep imaging surveys of star forming regions in our galaxy, brown dwarf surveys in clusters, search for galaxies behind the Milky way (the Zone of Avoidance), and surveys toward the galactic center.

Paper Details

Date Published: 24 December 2002
PDF: 6 pages
Proc. SPIE 4836, Survey and Other Telescope Technologies and Discoveries, (24 December 2002); doi: 10.1117/12.456991
Show Author Affiliations
Yasushi Nakajima, Nagoya Univ. (Japan)
Motohide Tamura, National Astronomical Observatory of Japan (Japan)
Chie Nagashima, Nagoya Univ. (Japan)
Takahiro Nagayama, Nagoya Univ. (Japan)
Daisuke Baba, Nagoya Univ. (Japan)
Koji Sugitani, Nagoya City Univ. (Japan)
Hidehiko Nakaya, National Astronomical Observatory of Japan (United States)
Tetsuya Nagata, Nagoya Univ. (Japan)
Daisuke Kato, Nagoya Univ. (Japan)
Mikio Kurita, Nagoya Univ. (Japan)
Shuji Sato, Nagoya Univ. (Japan)
Zhibo Jiang, Purple Mountain Observatory (Japan)
Yoshifusa Ita, Institute for Astronomy/Tokyo Univ. (Japan)
Toshihiko Tanabe, Institute for Astronomy/Tokyo Univ. (Japan)
Yoshikazu Nakata, Institute for Astronomy/Tokyo Univ. (Japan)
Takashi Naoi, National Astronomical Observatory of Japan (Japan)
Yumiko Oasa, National Space Development Agency of Japan (Japan)


Published in SPIE Proceedings Vol. 4836:
Survey and Other Telescope Technologies and Discoveries
J. Anthony Tyson; Sidney Wolff, Editor(s)

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