论文标题
詹姆斯·韦伯太空望远镜的近红外成像仪和无狭窄的光谱仪-II。宽阔的狭开光谱
The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope -- II. Wide Field Slitless Spectroscopy
论文作者
论文摘要
我们在James Webb太空望远镜上介绍了Niriss仪器的宽场狭slits slits slits频谱模式。该模式采用两个正交的低分辨率（解决功率$ \ \ 150 $）的grisms结合使用，并在波长范围0.8至$ 2.3 \ $ 2.3 \，μ$ m的波长范围内提供几乎每个源源的频谱。当与低背景相结合时，望远镜提供的高灵敏度和高空间分辨率，该模式将实现对遥远星系的结构和演变的前所未有的研究。我们描述了与此模式以及预期成像和光谱敏感性相关的截止硬件的性能。我们讨论操作和校准程序以获取最高质量数据。作为观察模式使用量的示例，我们介绍了两个计划保证的时间观察计划的详细信息：加拿大尼罗斯无偏见的集群调查（Canucs）和针对年轻的棕色矮人和流氓行星的Niriss调查。
We present the wide field slitless spectroscopy mode of the NIRISS instrument on the James Webb Space Telescope. This mode employs two orthogonal low-resolution (resolving power $\approx 150$) grisms in combination with a set of six blocking filters in the wavelength range 0.8 to $2.3\,μ$m to provide a spectrum of almost every source across the field-of-view. When combined with the low background, high sensitivity and high spatial resolution afforded by the telescope, this mode will enable unprecedented studies of the structure and evolution of distant galaxies. We describe the performance of the as-built hardware relevant to this mode and expected imaging and spectroscopic sensitivity. We discuss operational and calibration procedures to obtain the highest quality data. As examples of the observing mode usage, we present details of two planned Guaranteed Time Observations programs: The Canadian NIRISS Unbiased Cluster Survey (CANUCS) and The NIRISS Survey for Young Brown Dwarfs and Rogue Planets.
