UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAK SCI004000 Astronomy
BISAK SCI005000 Physics / Astrophysics
The article discusses the challenges and solutions associated with high-resolution spectroscopy on alt-azimuth mount telescopes, particularly focusing on the 6-meter BTA (Big Telescope Alt-Azimutal) and its Nasmyth focus. The main attention is given to the instability of spectra caused by the design features of the telescope and the equipment used. Special attention is paid to the issues of temperature non-uniformity and its impact on observation quality. Various stages of equipment development and testing are described along with the results of applying new technologies and methods to achieve high spectral resolution.
instrumentation: spectrographs; telescopes
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