ELT-HIRES, the high resolution spectrograph for the ELT: the Phase A study and the path to construction
ELT-HIRES, the high resolution spectrograph for the ELT: the Phase A study and the path to construction
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ELT-HIRES，ELT 的高分辨率光谱仪：A 阶段研究和建设路径
DOI：
10.1117/12.2560489
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Marconi A
中科院分区：
文献类型：
--
作者：
Marconi A
HIRES是欧洲极大望远镜在光学和近红外波长的高分辨率摄谱仪。 它由三个光纤光谱仪组成，波长覆盖范围为0.4-1.8 µm（目标为0.35-2.4 µm），光谱分辨率为 100,000. 光纤馈送允许HIRES具有几种可互换的观察模式，包括SCAO模块和NIR中的小型衍射限制IFU。因此，它将能够在视宁度和衍射限制模式下工作。它的模块化将确保HIRES可以完全放置在Nasmyth平台上，如果有足够的质量和体积，或者部分放置在Nasmyth平台上，部分放置在Coud`e室中。ELT-HIRES拥有广泛的科学案例，几乎涵盖了天体物理学甚至基础物理学的所有研究领域。在顶级科学案例中，有来自系外行星大气层的生物特征的检测，发现第一代恒星（PopIII）的指纹，对自然基本耦合稳定性的测试，以及宇宙加速的直接检测。HIRES联盟由来自14个国家的30多个研究所组成，组成了一个由200多名科学家和工程师组成的团队。
HIRES is the high-resolution spectrograph of the European Extremely Large Telescope at optical and near-infrared wavelengths. It consists of three fibre-fed spectrographs providing a wavelength coverage of 0.4-1.8 µm (goal 0.35-2.4 µm) at a spectral resolution of 100,000. The fibre-feeding allows HIRES to have several, interchangeable observing modes including a SCAO module and a small diffraction-limited IFU in the NIR. Therefore, it will be able to operate both in seeing- and diffraction-limited modes. Its modularity will ensure that HIRES can be placed entirely on the Nasmyth platform, if enough mass and volume is available, or part on the Nasmyth and part in the Coud`e room. ELT-HIRES has a wide range of science cases spanning nearly all areas of research in astrophysics and even fundamental physics. Among the top science cases there are the detection of biosignatures from exoplanet atmospheres, finding the fingerprints of the first generation of stars (PopIII), tests on the stability of Nature’s fundamental couplings, and the direct detection of the cosmic acceleration. The HIRES consortium is composed of more than 30 institutes from 14 countries, forming a team of more than 200 scientists and engineers.