TRISPEC: A Simultaneous Optical and Near‐Infrared Imager, Spectrograph, and Polarimeter | Zendy

Makoto Watanabe | Zendy; Hidehiko Nakaya | Zendy; Tomoyasu Yamamuro | Zendy; Takahiro Zenno | Zendy; Miki Ishii | Zendy; Makoto Okada | Zendy; Atsushi Yamazaki | Zendy; Yusuke Yamanaka | Zendy; Mikio Kurita | Zendy; Masaru Kino | Zendy; Ryuta Ijiri | Zendy; T. Hirao | Zendy; Tetsuya Nagata | Zendy; Shuji Sato | Zendy; Toshihide Kawai | Zendy; Youko Nakamura | Zendy; Toshikazu Satō | Zendy; Noboru Ebizuka | Zendy; J. H. Hough | Zendy; A. Chrysostomou | Zendy

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TRISPEC: A Simultaneous Optical and Near‐Infrared Imager, Spectrograph, and Polarimeter

Author(s) -

Makoto Watanabe,

Hidehiko Nakaya,

Tomoyasu Yamamuro,

Takahiro Zenno,

Miki Ishii,

Makoto Okada,

Atsushi Yamazaki,

Yusuke Yamanaka,

Mikio Kurita,

Masaru Kino,

Ryuta Ijiri,

T. Hirao,

Tetsuya Nagata,

Shuji Sato,

Toshihide Kawai,

Youko Nakamura,

Toshikazu Satō,

Noboru Ebizuka,

J. H. Hough,

A. Chrysostomou

Publication year - 2005

Publication title -

publications of the astronomical society of the pacific

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.294

H-Index - 172

eISSN - 1538-3873

pISSN - 0004-6280

DOI - 10.1086/431914

Subject(s) - spectrograph , polarimeter , telescope , physics , dichroic glass , polarimetry , optics , observatory , optical telescope , infrared , near infrared spectroscopy , astronomy , remote sensing , infrared telescope , geology , scattering , spectral line

We present the design, construction, and performance of TRISPEC (Triple Range Imager and Spectrograph), a simultaneous optical and near-infrared imager, spectrograph, and polarimeter. This instrument splits the incoming light from a telescope into the three beams—one optical channel (0.45-0.90 μm) and two infrared channels (0.90-1.85 and 1.85-2.5 μm)—by means of two dichroic mirrors. It is capable of simultaneous three-band imaging or spectroscopy, with or without polarimetry. Low-resolution grisms (R ~ 70-360) cover a wide wavelength range of 0.46-2.5 μm, simultaneously. The instrument employs three arrays—one 512 × 512 SITe CCD and two 256 × 256 SBRC InSb arrays—to cover the three channels. It has been commissioned in the imaging, spectroscopic, and polarimetric modes on the United Kingdom Infrared Telescope, the University of Hawaii 2.2 m telescope, and the Okayama Astrophysical Observatory 1.88 m telescope since 1999 June.

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