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

Abstract

We present an overview of the design of IRIS, an infrared (0.84 - 2.4 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.

Proceedings of the SPIE, 9147-76 (2014)

References in corpus (5)

• Prospects for measuring supermassive black hole masses with future extremely large telescopes
• The Infrared Imaging Spectrograph (IRIS) for TMT: Instrument Overview
• The infrared imaging spectrograph (IRIS) for TMT: on-instrument wavefront sensors and NFIRAOS interface
• The InfraRed Imaging Spectrograph (IRIS) for TMT: Reflective ruled diffraction grating performance testing and discussion
• On-instrument wavefront sensor design for the TMT infrared imaging spectrograph (IRIS) update

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• NFIRAOS First Facility AO System for the Thirty Meter Telescope
• The Infrared Imaging Spectrograph (IRIS) for TMT: Instrument Overview
• Astrophotonics: astronomy and modern optics
• Precision cosmology with time delay lenses: high resolution imaging requirements
• The infrared imaging spectrograph (IRIS) for TMT: on-instrument wavefront sensors and NFIRAOS interface
• The InfraRed Imaging Spectrograph (IRIS) for TMT: Reflective ruled diffraction grating performance testing and discussion
• The InfraRed Imaging Spectrograph (IRIS) for TMT: photometric characterization of anisoplanatic PSFs and testing of PSF-Reconstruction via AIROPA