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.

引用

页数：7

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