A high spectral resolution spectrograph with fiber input for the Big Azimuthal Telescope of SAO RAS. Improvement of the spectral module
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The paper presents a critical analysis and modernization of separate elements of the optical layout of a high-resolution spectrograph with fiber input for the Big Azimuthal Telescope of the Special Astrophysical Observatory. The modernization is directed mainly at enhancing the light efficiency and making it possible to produce the spectrograph using domestic manufacturers. Renovated versions of the cross-dispersion grism, the projection camera, and the overall characteristics of the system are presented. The resulting efficiency of the whole instrument is given.
KeywordsFiber astrospectroscopy Echelle spectrograph Large-size optics Grism Optical system design
This research was funded by the Russian Science Foundation (project 14-50-00043, area of focus Exoplanets).
- 1.Valyavin, G.G., Bychkov, V.D., Yushkin, M.V., Galazutdinov, G.A., Drabek, S.V., Shergin, V.S., Sarkisyan, A.N., Semenko, E.A., Burlakova, T.E., Kravchenko, V.M., Kudryavtsev, D.O., Pritychenko, A.M., Kryukov, P.G., Semjonov, S.L., Musaev, F.A., Fabrika, S.N.: Astrophys. Bull. 69, 224 (2014)ADSCrossRefGoogle Scholar