IRIS is a near-infrared (0.84 to 2.4 microns) integral field spectrograph and wide-field imager being developed for first light with the Thirty Meter (TMT). It mounts to the advanced optics (AO) system NFIRAOS and has integrated on-instrument wavefront sensors (OIWFS) to achieve diffraction-limited spatial resolution at wavelengths longer than 1 micron. With moderate spectral resolution (R ~4,000 - 8,000) and large bandpass over a continuous field of view, IRIS will open new opportunities in virtually every area of astrophysical science. It will be able to resolve surface features tens of kilometers across Titan, while also mapping the distant galaxies at the scale of an individual star forming region. This paper summarizes the entire design and capabilities, and includes the results from the nearly completed preliminary design phase.
@article{arxiv.1608.01720,
title = {The Infrared Imaging Spectrograph (IRIS) for TMT: Instrument Overview},
author = {James E. Larkin and Anna M. Moore and Shelley A. Wright and James E. Wincentsen and David Anderson and Eric M. Chisholm and Richard G. Dekany and Jennifer S. Dunn and Brent L. Ellerbroek and Yutaka Hayano and Andrew C. Phillips and Luc Simard and Roger Smith and Ryuji Suzuki and Robert W. Weber and Jason L. Weiss and Kai Zhang},
journal= {arXiv preprint arXiv:1608.01720},
year = {2016}
}