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9 July 2018 The infrared imaging spectrograph (IRIS) for TMT: instrument overview (Conference Presentation)
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Abstract
With the successful completion of our preliminary design phase, we will present an update on all design aspects of the IRIS near-infrared integral field spectrograph and wide-field imager for the Thirty Meter Telescope (TMT). IRIS works with the Narrow Field Infrared Adaptive Optics System (NFIRAOS) to make observations at the diffraction limit of TMT at wavelengths between 0.84 and 2.4 microns. The imager has been expanded to a 34 arcsec field of view and the spectrograph has a wide range of filter and spectral format combinations with a contiguous field of view up to 112x128 spatial elements. Among the many challenges the instrument faces, and has tried to address in its design, are atmospheric dispersion up to 100 times the sampling scale, unprecedented saturation issues in crowded fields, and the need for integrated on-instrument wavefront sensors. But the scientific payoff is enormous and IRIS on TMT will open entirely new opportunities in all areas of astrophysical science.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James E. Larkin, Shelley A. Wright, Eric M. Chisholm, David Andersen, Richard G. Dekany, Jennifer S. Dunn, Brent L. Ellerbroek, Yutaka Hayano, Renate Kupke, Anna M. Moore, Andrew C. Phillips, Luc Simard, Roger M. Smith, Ryuji Suzuki, Adam Trapp, Gregory Walth, Robert Weber, James E Wincentsen, Jason L. Weiss, and Kai Zhang "The infrared imaging spectrograph (IRIS) for TMT: instrument overview (Conference Presentation)", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107021T (9 July 2018); https://doi.org/10.1117/12.2313891
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