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arXiv 2202.01714astro-ph.IM
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詹姆斯韦伯Space Telescope的近红外成像仪和无狭缝光谱仪-- II。宽视野无缝Spectroscopy

The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope -- II. Wide Field Slitless Spectroscopy

Chris J. Willott, René Doyon, Loic Albert, Gabriel B. Brammer, William V. Dixon, Koraljka Muzic, Swara Ravindranath, Aleks Scholz, Roberto Abraham, Étienne Arti… 展开作者

Chris J. Willott, René Doyon, Loic Albert, Gabriel B. Brammer, William V. Dixon, Koraljka Muzic, Swara Ravindranath, Aleks Scholz, Roberto Abraham, Étienne Artigau, Maruša Bradač, Paul Goudfrooij, John B. Hutchings, Kartheik G. Iyer, Ray Jayawardhana, Stephanie LaMassa, Nicholas Martis, Michael R. Meyer, Takahiro Morishita, Lamiya Mowla, Adam Muzzin, Gaël Noirot, Camilla Pacifici, Neil Rowlands, Ghassan Sarrouh, Marcin Sawicki, Joanna M. Taylor, Kevin Volk, Johannes Zabl

摘要:

介绍了詹姆斯·韦伯空间望远镜近红外光谱仪的宽视场无狭缝光谱模式。该模式采用两个正交的低分辨率(分辨能力$\approx 150$)光栅与一组六个波长范围为0.8至$2.3\,μ$ m的阻挡滤波器相结合,以提供视场内几乎每个源的光谱。当与望远镜提供的低背景、高灵敏度和高空间分辨率相结合时,这种模式将能够对遥远星系的结构和演变进行前所未有的研究。我们描述了与此模式相关的建成硬件的性能以及预期的成像和光谱灵敏度。我们讨论了操作和校准程序,以获得最高质量的数据。作为观测模式使用的例子,我们提出了两个计划中的保证时间观测计划的细节:加拿大NIRISS无偏星系团调查(CANUCS)和NIRISS年轻棕矮星和流氓行星调查。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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