Compensation for low-frequency and quasistatic aberrations in stellar spectroscopy
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Abstract
We report methods for correcting low-frequency variations in the position of the star image at the input of the spectral equipment at the BTA Nasmyth and primary foci, used for the past two decades at the telescope. New technical solutions make it possible to extend the operating frequency range to 6 Hz for stars brighter than 10m.
Supporting Agencies
Observations at the 6-meter telescope of the SAO RAS are supported by the Ministry of Science and Higher Education of the Russian Federation. Financial support was provided by grant No. 075-15-2022-262 “Multi- wavelength study of nonstationary processes in the Universe” (13.MNPMU.21.0003)
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