论文标题
James Webb太空望远镜IV上的近红外光谱仪(NIRSPEC)。系外行星表征的能力和预测性能
The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope IV. Capabilities and predicted performance for exoplanet characterization
论文作者
论文摘要
詹姆斯·韦伯(James Webb)太空望远镜(JWST)上的近侵光光谱仪(NIRSPEC)是一种非常通用的乐器,提供了多个光谱分辨率不同的多对象和积分野外光谱仪($ \ sim $ 30 $ \ sim $ \ sim $ \ sim $ 30至$ \ $ \ sim $ 3000),在0.6至5.3微米的范围内,许多科学的范围是我们的许多科学家,这些科学的范围是我们的最初的科学,这些科学的范围是,他们的范围是我们的范围。太阳系。除了其积分场单元和对多对象光谱的支持外,NIRSPEC还具有几个固定的缝隙和一个专门设计的宽光圈,以实现高精度的时间序列和过境以及对外行的Eclipse观察。在本文中,我们介绍了有关时间序列观测的功能,通常是外部球星的传输和日食光谱。由于JWST的大型收集区和NIRSPEC的出色吞吐量,光谱覆盖范围和探测器性能,因此该模式将使科学家能够表征具有前所未有的灵敏度的外部球星的气氛。
The Near-Inrared Spectrograph (NIRSpec) on the James Webb Space Telescope (JWST) is a very versatile instrument, offering multiobject and integral field spectroscopy with varying spectral resolution ($\sim$30 to $\sim$3000) over a wide wavelength range from 0.6 to 5.3 micron, enabling scientists to study many science themes ranging from the first galaxies to bodies in our own Solar System. In addition to its integral field unit and support for multiobject spectroscopy, NIRSpec features several fixed slits and a wide aperture specifically designed to enable high precision time-series and transit as well as eclipse observations of exoplanets. In this paper we present its capabilities regarding time-series observations, in general, and transit and eclipse spectroscopy of exoplanets in particular. Due to JWST's large collecting area and NIRSpec's excellent throughput, spectral coverage, and detector performance, this mode will allow scientists to characterize the atmosphere of exoplanets with unprecedented sensitivity.