Share Email Print
cover

Proceedings Paper

Design and development of SWIMS: a near-infrared multi-object spectrograph for the University of Tokyo Atacama Observatory
Author(s): Masahiro Konishi; Kentaro Motohara; Hidenori Takahashi; Ken Tateuchi; Yutaro Kitagawa; Natsuko Kato; Tsutomu Aoki; Mamoru Doi; Toshihiro Handa; Takafumi Kamizuka; Kimiaki Kawara; Kotaro Kohno; Shintaro Koshida; Takeo Minezaki; Takashi Miyata; Tomoki Morokuma; Shigeyuki Sako; Takao Soyano; Yoichi Tamura; Toshihiko Tanabe; Masuo Tanaka; Ken'ichi Tarusawa; Yuzuru Yoshii
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

SWIMS (Simultaneous-color Wide-field Infrared Multi-object Spectrograph) is one of the first-generation instruments for the University of Tokyo Atacama Observatory (TAO; P.I.: Yuzuru Yoshii) 6.5-m telescope which is planned to be constructed at the world's highest site, the summit of Cerro Chajnantor (an altitude of 5,640 m or 18,500 ft) in northern Chile. By placing a dichroic mirror into the collimated beam, SWIMS is capable of wide-field (φ 9'.6 with 0".126 pixel-1) two-color simultaneous imaging as well as multi-object spectroscopy (MOS) using cooled multi-slit masks covering the entire near-infrared spectra between 0.9 and 2.5 μm in a single exposure with low-to-medium spectral resolutions. Up to 20 user-defined slit masks as well as long slit masks are available. The field of view is covered with four 2048 x 2048 pixel HgCdTe focal plane arrays (HAWAII-2RG). Tests of the MOS slit mask exchanger motions have been completed successfully without any trouble under cryogenic environment. Further MOS tests will be performed at various tilt and rotation angles of the instrument using a telescope simulator. Also, a conceptual study of a compact and cryogenic wide-field integral field spectroscopy unit handled by the slit mask exchanger is now being carried out. The part of the current designs is optimized for installation on the Subaru Telescope for performance verification and early scientific observations prior to the construction of the TAO 6.5-m telescope. In this paper, we present the design and development status of the instrument.

Paper Details

Date Published: 24 September 2012
PDF: 11 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84467P (24 September 2012); doi: 10.1117/12.924259
Show Author Affiliations
Masahiro Konishi, Institute of Astronomy, The Univ. of Tokyo (Japan)
Kentaro Motohara, Institute of Astronomy, The Univ. of Tokyo (Japan)
Hidenori Takahashi, Institute of Astronomy, The Univ. of Tokyo (Japan)
Ken Tateuchi, Institute of Astronomy, The Univ. of Tokyo (Japan)
Yutaro Kitagawa, Institute of Astronomy, The Univ. of Tokyo (Japan)
Natsuko Kato, Institute of Astronomy, The Univ. of Tokyo (Japan)
Tsutomu Aoki, Kiso Observatory, Institute of Astronomy, The Univ. of Tokyo (Japan)
Mamoru Doi, Institute of Astronomy, The Univ. of Tokyo (Japan)
Toshihiro Handa, Kagoshima Univ. (Japan)
Takafumi Kamizuka, Institute of Astronomy, The Univ. of Tokyo (Japan)
Kimiaki Kawara, Institute of Astronomy, The Univ. of Tokyo (Japan)
Kotaro Kohno, Institute of Astronomy, The Univ. of Tokyo (Japan)
Shintaro Koshida, Institute of Astronomy, The Univ. of Tokyo (Japan)
Takeo Minezaki, Institute of Astronomy, The Univ. of Tokyo (Japan)
Takashi Miyata, Institute of Astronomy, The Univ. of Tokyo (Japan)
Tomoki Morokuma, Institute of Astronomy, The Univ. of Tokyo (Japan)
Shigeyuki Sako, Institute of Astronomy, The Univ. of Tokyo (Japan)
Takao Soyano, Kiso Observatory, Institute of Astronomy, The Univ. of Tokyo (Japan)
Yoichi Tamura, Institute of Astronomy, The Univ. of Tokyo (Japan)
Toshihiko Tanabe, Institute of Astronomy, The Univ. of Tokyo (Japan)
Masuo Tanaka, Institute of Astronomy, The Univ. of Tokyo (Japan)
Ken'ichi Tarusawa, Kiso Observatory, Institute of Astronomy, The Univ. of Tokyo (Japan)
Yuzuru Yoshii, Institute of Astronomy, The Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

© SPIE. Terms of Use
Back to Top