RISTRETTO:七像元高分辨率衍射极限光谱仪的组装与测试
RISTRETTO: Assembly and Testing of the Seven-spaxel, High-resolution, Diffraction-limited Spectrograph
- Observatoire de Genève, University of Geneva(日内瓦天文台,日内瓦大学)
- Physikalisches Institut, Universität Bern(伯尔尼大学物理研究所)
- Laboratoire de Météorologie Dynamique, IPSL, CNRS, Sorbonne Universitée(动态气象实验室,IPSL,法国国家科学研究中心,索邦大学)
- Laboratoire d'Astrophysique de Marseille (LAM), UMR 7326, Aix-Marseille Université, CNRS, CNES(马赛天体物理实验室,Aix-Marseille大学,法国国家科学研究中心,法国国家空间研究中心)
- ONERA - The French Aerospace Lab(法国航空与航天研究学院)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
RISTRETTO项目研制出七像元高分辨率单模阶梯光栅光谱仪,利用OHP 1.52米望远镜结合PAPYRUS自适应光学系统完成测试,旨在探测系外行星反射光以测量反照率及生物特征。
AI中文摘要:
RISTRETTO项目旨在利用高对比度/高分辨率方法直接探测系外行星的反射光,以测量其反照率并探测可能的生物特征。本文报告了七像元高分辨率单模光谱仪的组装、实验室测试及在轨测试情况,该光谱仪是在仪器其余部分完成前先行研制的,为高分辨率阶梯光栅光谱仪,具备高光谱保真度,处于真空及温控环境中。组装完成后,研究人员利用OHP 1.52米望远镜,结合PAPYRUS自适应光学系统为该光谱仪注入信号,开展了在轨测试。
英文摘要:
The RISTRETTO project aims at the direct detection of the reflected light of extra-solar planets to measure albedos and detect possible biosignatures, using the high-contrast / high-resolution method. We report on the assembly, lab-testing and on-sky testing of the seven-spaxel high-resolution single-mode spectrograph which was built ahead of the rest of the instrument. The spectrograph is a high resolution echelle spectrograph build for high spectral fidelity being uder vacuum and thermally controlled. Once the assembly has been completed we had the chance to test it on sky using OHP 1.52 m telescope using the PAPYRUS AO system for injection in our spectrograph.