Achieving the resolution of the spectrograph of the 6m large Azimuthal telescope

Dmitrii Sazonenko; Dmitrii Kukushkin; Alexey Bakholdin; Gennady Valyavin

doi:10.1117/12.2232043

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9 August 2016 Achieving the resolution of the spectrograph of the 6m large Azimuthal telescope

Dmitrii Sazonenko, Dmitrii Kukushkin, Alexey Bakholdin, Gennady Valyavin

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Proceedings Volume 9908, Ground-based and Airborne Instrumentation for Astronomy VI; 99086E (2016) https://doi.org/10.1117/12.2232043
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

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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Dmitrii Sazonenko, Dmitrii Kukushkin, Alexey Bakholdin, and Gennady Valyavin "Achieving the resolution of the spectrograph of the 6m large Azimuthal telescope", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99086E (9 August 2016); https://doi.org/10.1117/12.2232043

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