标题： TMT红外成像光谱仪（IRIS）：仪器概述 显示英文标题

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

摘要： 我们介绍了三十米望远镜（TMT）的红外积分视场光谱仪和成像相机IRIS的设计概览。IRIS具有极低的波前误差（<30纳米）和机载波前传感器，将利用窄视场红外自适应光学系统（NFIRAOS）的高角分辨率，在30米孔径的衍射极限下分解天空。该仪器的主要光谱分辨率为4000，空间采样从4毫弧秒开始，将创造出前所未有的能力来探索高红移星系、银河系中心、恒星形成区域以及几乎任何天体物理对象。本文总结了整个设计及其基本功能。设计创新包括透镜单元和切片器组合的积分视场单元、新的4K×4K探测器、极其精确的大气色散校正、红外波前传感器和一个非常大的真空低温系统。 显示英文摘要

摘要： We present an overview of the design of IRIS, an infrared (0.85 - 2.5 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.