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The Infrared Imaging Spectrograph (IRIS) for TMT: Instrument Overview

Larkin, James E. and Moore, Anna M. and Barton, Elizabeth J. and Bauman, Brian and Bui, Khanh and Canfield, John and Crampton, David and Delacroix, Alex and Fletcher, Murray and Hale, David and Loop, David and Niehaus, Cyndie and Phillips, Andrew C. and Reshetov, Vladimir and Simard, Luc and Smith, Roger and Suzuki, Ryuji and Usuda, Tomonori and Wright, Shelley A. (2010) The Infrared Imaging Spectrograph (IRIS) for TMT: Instrument Overview. In: Ground-based and airborne instrumentation for astronomy III. Proceedings of SPIE. No.7735. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 773529 . ISBN 978-0-81948-225-9 .

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We present an overview of the design of IRIS, an infrared (0.85 - 2.5 micron) integral field spectrograph and imaging camera for the Thirty Meter Telescope (TMT). With extremely low wavefront error (<30 nm) and on-board wavefront sensors, IRIS will take advantage of the high angular resolution of the narrow field infrared adaptive optics system (NFIRAOS) to dissect the sky at the diffraction limit of the 30-meter aperture. With a primary spectral resolution of 4000 and spatial sampling starting at 4 milliarcseconds, the instrument will create an unparalleled ability to explore high redshift galaxies, the Galactic center, star forming regions and virtually any astrophysical object. This paper summarizes the entire design and basic capabilities. Among the design innovations is the combination of lenslet and slicer integral field units, new 4Kx4k detectors, extremely precise atmospheric dispersion correction, infrared wavefront sensors, and a very large vacuum cryogenic system.

Item Type:Book Section
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URLURL TypeDescription DOIArticle
Larkin, James E.0000-0001-7687-3965
Moore, Anna M. 0000-0002-2894-6936
Wright, Shelley A.0000-0003-1034-8054
Additional Information:© 2010 SPIE. The authors wish to acknowledge the support of the TMT partner institutions. They are the Association of Canadian Universities for Research in Astronomy (ACURA), the California Institute of Technology and the University of California. This work was supported as well by the Gordon and Betty Moore Foundation, the Canada Foundation for Innovation, the Ontario Ministry of Research and Innovation, the National Research Council of Canada, Natural Sciences and Engineering Research Council of Canada, the British Columbia Knowledge Development Fund, National Astronomical Observatory of Japan (NAOJ), the Association of Universities for Research in Astronomy (AURA) and the U.S. National Science Foundation.
Group:Thirty Meter Telescope
Funding AgencyGrant Number
Association of Canadian Universities for Research in Astronomy (ACURA)UNSPECIFIED
University of CaliforniaUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Canada Foundation for InnovationUNSPECIFIED
Ontario Ministry of Research and InnovationUNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
British Columbia Knowledge Development FundUNSPECIFIED
National Astronomical Observatory of JapanUNSPECIFIED
Association of Universities for Research in Astronomy (AURA)UNSPECIFIED
Subject Keywords:Infrared Imaging; Infrared Spectroscopy; Spectrographs; Adaptive Optics
Series Name:Proceedings of SPIE
Issue or Number:7735
Record Number:CaltechAUTHORS:20110318-133917771
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Official Citation:James E. Larkin ; Anna M. Moore ; Elizabeth J. Barton ; Brian Bauman ; Khanh Bui ; John Canfield ; David Crampton ; Alex Delacroix ; Murray Fletcher ; David Hale ; David Loop ; Cyndie Niehaus ; Andrew C. Phillips ; Vladimir Reshetov ; Luc Simard ; Roger Smith ; Ryuji Suzuki ; Tomonori Usuda and Shelley A. Wright "The infrared imaging spectrograph (IRIS) for TMT: instrument overview", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773529 (July 15, 2010); doi:10.1117/12.856305;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22976
Deposited By: Tony Diaz
Deposited On:18 Mar 2011 21:48
Last Modified:03 Oct 2019 02:42

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