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Proceedings Paper

First light of UT 15-band dichroic-mirror camera
Author(s): Mamoru Doi; Junji Hayano; Hiroyuki Utsunomiya; Yutaka Ihara; Kouichi Tokita; Shigeyuki Sako; Sadanori Okamura; Naohiro Takanashi; Tomoki Morokuma; Hisanori Furusawa; Hidehiko Nakaya; Yutaka Komiyama; Masafumi Yagi; Norio Okada; Akira Arai; Makoto Uemura; Koji S. Kawabata; Takuya Yamashita; Takashi Ohsugi; Hiroko Ito; Hanindyo Kuncarayakti; Masanao Abe; Sunao Hasegawa; Norihide Takeyama; Tomoyasu Yamamuro; Satoru Iwamura
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Paper Abstract

A dichroic mirror/filter can divide light into two different wavelength bands by the principle of interference. We proposed to use more than a dozen of these mirrors, and make a simultaneous imager in many color bands. This also enables us to make a powerful spectrograph which uses many CCDs. We here report the first light of UT 15-band Dichroic-Mirror Camera. We successfully obtained the first light at the Cassegrain focus of the 1.5-m Kanata telescope in May 2007. We also carried out the second observing run in March 2008. Our instrument covers a wide wavelength range (390-930nm), and the field of view is about 4.5 arcmin in diameter with 0.27arcsec/pixel. Image quality was limited by seeing (~1.2 arcsec at best). We describe basic design, characteristics, and performance of our instrument as well as early observational results. Future prospect of dichroic mirrors instruments will also be briefly discussed.

Paper Details

Date Published: 25 July 2008
PDF: 12 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70140F (25 July 2008); doi: 10.1117/12.788554
Show Author Affiliations
Mamoru Doi, Institute of Astronomy, The Univ. of Tokyo (Japan)
Junji Hayano, Institute of Astronomy, The Univ. of Tokyo (Japan)
Hiroyuki Utsunomiya, Institute of Astronomy, The Univ. of Tokyo (Japan)
Yutaka Ihara, Institute of Astronomy, The Univ. of Tokyo (Japan)
Kouichi Tokita, Institute of Astronomy, The Univ. of Tokyo (Japan)
Shigeyuki Sako, Institute of Astronomy, The Univ. of Tokyo (Japan)
Sadanori Okamura, The Univ. of Tokyo (Japan)
Naohiro Takanashi, Institute of Astronomy, The Univ. of Tokyo (Japan)
National Astronomical Observatory of Japan (Japan)
Tomoki Morokuma, National Astronomical Observatory of Japan (Japan)
Hisanori Furusawa, National Astronomical Observatory of Japan (Japan)
Hidehiko Nakaya, National Astronomical Observatory of Japan (Japan)
Yutaka Komiyama, National Astronomical Observatory of Japan (Japan)
Masafumi Yagi, National Astronomical Observatory of Japan (Japan)
Norio Okada, National Astronomical Observatory of Japan (Japan)
Akira Arai, Hiroshima Astrophysical Science Ctr., Hiroshima Univ. (Japan)
Makoto Uemura, Hiroshima Astrophysical Science Ctr., Hiroshima Univ. (Japan)
Koji S. Kawabata, Hiroshima Astrophysical Science Ctr., Hiroshima Univ. (Japan)
Takuya Yamashita, National Astronomical Observatory of Japan (Japan)
Hiroshima Astrophysical Science Ctr., Hiroshima Univ. (Japan)
Takashi Ohsugi, Hiroshima Astrophysical Science Ctr., Hiroshima Univ. (Japan)
Hiroko Ito, The Graduate Univ. for Advanced Studies (Japan)
Hanindyo Kuncarayakti, Institut Teknologi Bandung (Indonesia)
Masanao Abe, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Sunao Hasegawa, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Norihide Takeyama, Genesia Corp. (Japan)
Tomoyasu Yamamuro, Optcraft (Japan)
Satoru Iwamura, MRJ Ltd. (Japan)


Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)

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