Achieving the resolution of the spectrograph of the 6m Large Azimuthal Telescope

被引：1
|
作者：
Sazonenko, Dmitrii [1 ]
Kukushkin, Dmitrii [1 ]
Bakholdin, Alexey [1 ]
Valyavin, Gennady [2 ]
机构：
[1] ITMO Univ, St Petersburg, Russia
[2] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz, Russia
来源：
GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY VI | 2016年 / 9908卷
关键词：
spectral resolution; echelle-grating; grizm; spectrograph; Big Altazimuth Telescope; FED ECHELLE SPECTROGRAPH;
D O I：
10.1117/12.2232043
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Special Astrophysical Observatory of Russian Academy of Sciences (SAO RAS) creates a spectrograph with high spectral resolution for the 6-meter telescope. The spectrograph consists of a mobile unit located at the focus of the telescope's main mirror, a stationary part located under the telescope and optical fibers which transmit light from the mobile part to the stationary one. The spectral resolution of the stationary part should be R=100000. To achieve such a value, the scheme has two spectral elements, with cross-dispersion. The main spectral element is an echelle grating. The second spectral element is a prism with a diffraction grating on one facet.
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页数：7
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