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Proceedings Paper

Development of the Wide Field Grism Spectrograph 2
Author(s): Mariko Uehara; Chie Nagashima; Koji Sugitani; Makoto Watanabe; Shuji Sato; Tetsuya Nagata; Motohide Tamura; Noboru Ebizuka; Andrew J. Pickles; Klaus W. Hodapp; Yoichi Itoh; Makoto Nakano; Katsuo Ogura
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Paper Abstract

We have developed the Wide Field Grism Spectrograph 2 (WFGS2) for the f/10 focus of the University of Hawaii 2.2 m telescope (UH88). This instrument provides slit-less, wide-field spectroscopy as well as imaging and long-slit spectroscopy. Two CCD cameras of UH88, Tektronix 2k x 2k and OPTIC 4k x 4k, can be used as a detector. The spectral coverage is 380 - 970 nm, and the field of view is 11'.5 x 11'.5 with a pixel scale of 0".34 (Tektronix) or 0".21 pixel-1 (OPTIC) in the imaging mode. WFGS2 has two replica grisms (R = 620 at 650 nm and R = 730 at 400 nm) and a Volume-Phase Holographic (VPH) grism (R = 2500 at 664 nm). The VPH grism enables intermediate-dispersion spectroscopy with this transmission system. Two long-slits with widths of 0".6 and 0".9 can be used. The Sloan Digital Sky Survey (g', r', i', z') and narrow-band (wide Hα, Hα, and [SII]+Li) filters are equipped. The first light observation was done in November 2003. We present the details of WFGS2, including the results of the first light observation.

Paper Details

Date Published: 30 September 2004
PDF: 8 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.551055
Show Author Affiliations
Mariko Uehara, Nagoya Univ. (Japan)
Chie Nagashima, Nagoya Univ. (Japan)
Koji Sugitani, Nagoya City Univ. (Japan)
Makoto Watanabe, Subaru Telescope/NAOJ (United States)
Shuji Sato, Nagoya Univ. (Japan)
Tetsuya Nagata, Nagoya Univ. (Japan)
Motohide Tamura, National Astronomical Observatory of Japan (Japan)
Noboru Ebizuka, RIKEN--The Institute of Physical and Chemical Research (Japan)
Andrew J. Pickles, Institute for Astronomy/Univ. of Hawaii (United States)
Klaus W. Hodapp, Institute for Astronomy/Univ. of Hawaii (United States)
Yoichi Itoh, Kobe Univ. (Japan)
Makoto Nakano, Oita Univ. (Japan)
Katsuo Ogura, Kokugakuin Univ. (Japan)

Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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