The Infrared Imaging Spectrograph (IRIS) for TMT: instrument overview

James E. Larkin; Shelley A. Wright; Eric M. Chisholm; David Andersen; Richard G. Dekany; Jennifer S. Dunn; Yutaka Hayano; Renate Kupke; Roger Smith; Ryuji Suzuki; Robert W. Weber; Kai Zhang

doi:10.1117/12.2561184

13 December 2020 The Infrared Imaging Spectrograph (IRIS) for TMT: instrument overview

James E. Larkin, Shelley A. Wright, Eric M. Chisholm, David Andersen, Richard G. Dekany, Jennifer S. Dunn, Yutaka Hayano, Renate Kupke, Roger Smith, Ryuji Suzuki, Robert W. Weber, Kai Zhang

Author Affiliations +

Proceedings Volume 11447, Ground-based and Airborne Instrumentation for Astronomy VIII; 114471Y (2020) https://doi.org/10.1117/12.2561184
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

IRIS is a diffraction limited instrument designed for first light of the Thirty Meter Telescope (TMT). It combines a nearinfrared integral field spectrograph (lenslet array and mirror slicer) and a wide-field imager with platescales as small as 4 mas. The project is nearing the end of its final design phase and will soon be ready for fabrication. Our team has created a wide variety of prototypes and design solutions for this advanced instrument. While many challenges like atmospheric dispersion correction and saturation are particularly acute due to the telescope diameter, many others arise from the large format detector arrays and wide range of science goals. We’ll present the overall design, results from our prototyping activities and discuss the astrophysical opportunities.

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James E. Larkin, Shelley A. Wright, Eric M. Chisholm, David Andersen, Richard G. Dekany, Jennifer S. Dunn, Yutaka Hayano, Renate Kupke, Roger Smith, Ryuji Suzuki, Robert W. Weber, and Kai Zhang "The Infrared Imaging Spectrograph (IRIS) for TMT: instrument overview", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 114471Y (13 December 2020); https://doi.org/10.1117/12.2561184

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