项目名称: 近红外积分视场光谱仪关键技术方法的研究
项目编号: No.11473048
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 天文学、地球科学
项目作者: 汤振
作者单位: 中国科学院国家天文台南京天文光学技术研究所
项目金额: 94万元
中文摘要: 随着一批空间望远镜陆续投入使用和一批地基4到10米级远镜的建成标志着红外天文学的发展步入了它的黄金时代。正在筹建的地基极大望远镜TMT和空间望远镜JWST都配置了近红外积分视场光谱仪。配以积分视场单元的近红外三维光谱仪,以其特有的高空间分辨率和高空间覆盖率性能,在研究高红移星系的物理性质和动力学结构、第一缕曙光等方面发挥着关键作用。本项目主要开展工作在近红外波段(0.8~2.5微米)积分视场单元技术方法的研究,建立近红外积分视场单元技术的实验系统和测试系统。本课题研究的近红外三维光谱仪也是南极望远镜和我国将来自主研制极大望远镜不可或缺的终端仪器技术。
中文关键词: 极大望远镜;红外;光谱仪;像切割器;制冷技术
英文摘要: Infrared astronomy is the branch of astronomy and astrophysics that studies astronomical objects visible in infrared (IR) radiation. In recent years, infrared astronomy has become a major field of science due to the rapid advances in infrared detector technology, large ground based telescopes and space telescope.Most of these telescopes will adopt the Near InfraRed Spectrograph. The NIRSpec with IFU will operate over a wavelength range of 0.6 to 5 microns, and play a key role with the high spacee resolution and spectro resolution performance to study the first galaxies formed after the Big Bang.This project mainly aim to develop the near infrared integral field unit technology, the test system,and to develop related technology to the construction of large instruments for extremly large telescope.
英文关键词: Extremely Large Telescope;Infrared;Spectrograph;Image slicer;Refrigeration technology