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The infrared imaging spectrograph (IRIS) for TMT: spectrograph design

Moore, Anna M. and Bauman, Brian J. and Barton, Elizabeth J. and Crampton, David and Delacroix, Alex and Larkin, James E. and Simard, Luc and Suzuki, Ryuji and Wright, Shelley A. (2010) The infrared imaging spectrograph (IRIS) for TMT: spectrograph design. 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. 77352H. ISBN 9780819482259. https://resolver.caltech.edu/CaltechAUTHORS:20191015-153950428

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Abstract

The Infra-Red Imaging Spectrograph (IRIS) is one of the three first light instruments for the Thirty Meter Telescope (TMT) and is the only one to directly sample the diffraction limit. The instrument consists of a parallel imager and offaxis Integral Field Spectrograph (IFS) for optimum use of the near infrared (0.84um-2.4um) Adaptive Optics corrected focal surface. We present an overview of the IRIS spectrograph that is designed to probe a range of scientific targets from the dynamics and morphology of high-z galaxies to studying the atmospheres and surfaces of solar system objects, the latter requiring a narrow field and high Strehl performance. The IRIS spectrograph is a hybrid system consisting of two state of the art IFS technologies providing four plate scales (4mas, 9mas, 25mas, 50mas spaxel sizes). We present the design of the unique hybrid system that combines the power of a lenslet spectrograph and image slicer spectrograph in a configuration where major hardware is shared. The result is a powerful yet economical solution to what would otherwise require two separate 30m-class instruments.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.857404DOIArticle
ORCID:
AuthorORCID
Moore, Anna M.0000-0002-2894-6936
Larkin, James E.0000-0001-7687-3965
Wright, Shelley A.0000-0003-1034-8054
Additional Information:© 2010 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors gratefully 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, the Natural Sciences and Engineering Research Council of Canada, the British Columbia Knowledge Development Fund, the 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
Funders:
Funding AgencyGrant Number
Association of Canadian Universities for Research in Astronomy (ACURA)UNSPECIFIED
CaltechUNSPECIFIED
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
NSFUNSPECIFIED
Subject Keywords:Extremely large telescopes, image slicer, lenslet spectrograph, diffraction limited spectroscopy, Integral Field Spectrograph
Series Name:Proceedings of SPIE
Issue or Number:7735
Record Number:CaltechAUTHORS:20191015-153950428
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20191015-153950428
Official Citation:Anna M. Moore, Brian J. Bauman, Elizabeth J. Barton, David Crampton, Alex Delacroix, James E. Larkin, Luc Simard, Ryuji Suzuki, and Shelley A. Wright "The infrared imaging spectrograph (IRIS) for TMT: spectrograph design", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77352H (15 July 2010); https://doi.org/10.1117/12.857404
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99283
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Oct 2019 23:06
Last Modified:15 Oct 2019 23:06

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