H.O.R.S. a new visiting instrument for G.T.C. based on the Utrecht Echelle Spectrograph
H.O.R.S. a new visiting instrument for G.T.C. based on the Utrecht Echelle Spectrograph
复制标题
H.O.R.S.
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
S. Santana
中科院分区：
文献类型：
--
作者：
J. Peñate;F. Gracia;C. Allende;J. Calvo;S. Santana
高光学分辨率摄谱仪 (HORS) 是为 10 米加那利大望远镜 (GTC) 设计的高分辨率摄谱仪，基于 UES 的组件，UES 是 1992 年至 2001 年间在 4.2 米威廉赫歇尔望远镜 (WHT) 上使用的摄谱仪。HORS 被设计为交叉色散中阶梯光栅摄谱仪，可在 380-800 nm 范围内进行观测FWHM 分辨率约为 50,000。 HORS 将作为通用高分辨率摄谱仪在 GTC 上运行，并将作为 ESPRESSO 提议的一些技术的测试台——ESPRESSO 是计划用于欧洲南方天文台甚大望远镜 (VLT) 的超高稳定性摄谱仪。 HORS 摄谱仪将放置在 Coudé 房间中，在那里它可以享受出色的热稳定性和机械稳定性，光纤由与 OSIRIS 共享的 Nasmyth 焦点馈送。在光谱仪内部，入射光在到达准直器之前会撞击一个小折叠镜。经过第二次折叠后，光线将穿过一组三个棱镜和一个阶梯光栅，然后进入光谱仪相机，最后到达探测器。本手稿包含将 UES 转变为 HORS 的整个过程的摘要，以及为达到最终布局而引入的所有机械和光学修改。
The High Optical Resolution Spectrograph (HORS) is a proposed high-resolution spectrograph for the 10-m Gran Telescopio Canarias (GTC) based on components from UES, a spectrograph which was in use at the 4.2-m William Herschel Telescope (WHT) between 1992 and 2001. HORS is designed as a cross-dispersed echelle spectrograph to observe in the range 380-800 nm with a FWHM resolving power of about 50,000. HORS would operate on the GTC as a general-purpose high-resolution spectrograph, and it would serve as a test-bed for some of the technologies proposed for ESPRESSO – an ultra-high stability spectrograph planned for the Very Large Telescope (VLT) of the European Southern Observatory. The HORS spectrograph will be placed in the Coudé room, where it can enjoy excellent thermal and mechanical stability, fiber fed from the Nasmyth focus, which is shared with OSIRIS. Inside the spectrograph, incoming light will hit a small folder mirror before reaching the collimator. After a second folder, the light will go through a set of three prisms and an Echelle grating before entering the spectrograph camera and, finally, reaching the detector. This manuscript contains a summary of the whole process that has transformed UES into HORS, with all the mechanical and optical modifications that have been introduced to reach the final layout.