CRIRES: commissioning and first science results
CRIRES: commissioning and first science results
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CRIRES：调试和第一个科学成果
DOI：
10.1117/12.787259
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
B. Wolff
中科院分区：
文献类型：
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作者：
H. Käufl;P. Amico;P. Ballester;Eduardo A. Bendek Selman;P. Bristow;M. Casali;B. Delabre;D. Dobrzycka;R. Dorn;R. Esteves;G. Finger;G. Gillet;D. Gojak;M. Hilker;P. Jolley;Yves Jung;F. Kerber;B. Klein;J. Lizon;J. Paufique;J. Pirard;E. Pozna;H. Sana;Lilian Sanzana;R. Schmutzer;A. Seifahrt;R. Siebenmorgen;A. Smette;J. Stegmeier;L. Tacconi;S. Uttenthaler;E. Valenti;U. Weilenmann;B. Wolff
CRIRES是一种低温、预分散、红外中阶梯光谱仪，设计用于在1000和5000 nm之间提供105的标称分辨率ν/Δ ν，标称狭缝宽度为0.2 "。CRIRES安装在8米VLT UT1（Antu）的Nasmyth焦点A，标志着VLT原始仪器计划的完成。曲率传感自适应光学系统馈源用于最小化狭缝损耗，并沿狭缝提供0.2 "的空间分辨率沿着。一个镶嵌的四个阿拉丁InSb阵列封装在定制的陶瓷板已经开发出来。它提供了一个有效的4096 × 512像素焦平面阵列，以最大限度地提高每次曝光覆盖的自由光谱范围。可以插入气室，以便高精度地测量径向速度。可以预见到磁多普勒成像中塞曼敏感线的圆极化和线极化的测量，但尚未完全实现。一个低温沃拉斯顿棱镜的运动安装已经纳入。延迟器装置将位于单元望远镜焦平面附近。在这里，我们简要回顾了CRIRES的主要设计特点，并介绍了该仪器的调试，包括广泛的测试报告和天文结果的预览。
CRIRES is a cryogenic, pre-dispersed, infrared Echelle spectrograph designed to provide a nominal resolving power ν/Δν of 105 between 1000 and 5000 nm for a nominal slit width of 0.2". The CRIRES installation at the Nasmyth focus A of the 8-m VLT UT1 (Antu) marks the completion of the original instrumentation plan for the VLT. A curvature sensing adaptive optics system feed is used to minimize slit losses and to provide 0.2" spatial resolution along the slit. A mosaic of four Aladdin InSb-arrays packaged on custom-fabricated ceramic boards has been developed. It provides for an effective 4096 × 512 pixel focal plane array to maximize the free spectral range covered in each exposure. Insertion of gas cells is possible in order to measure radial velocities with high precision. Measurement of circular and linear polarization in Zeeman sensitive lines for magnetic Doppler imaging is foreseen but not yet fully implemented. A cryogenic Wollaston prism on a kinematic mount is already incorporated. The retarder devices will be located close to the Unit Telescope focal plane. Here we briefly recall the major design features of CRIRES and describe the commissioning of the instrument including a report of extensive testing and a preview of astronomical results.