Estimation of conjugated height for adaptive optical system Large Solar Vacuum Telescope of Baikal Astrophysical Observatory

L. A. Bolbasova; V. P. Lukin

doi:10.1117/12.2688675

17 October 2023 Estimation of conjugated height for adaptive optical system Large Solar Vacuum Telescope of Baikal Astrophysical Observatory

L. A. Bolbasova, V. P. Lukin

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Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127800F (2023) https://doi.org/10.1117/12.2688675
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation

Abstract

The 1-meter Large Solar Vacuum Telescope (LSVT) is main instrument of the Baikal Astrophysical Observatory (BAO) of the Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences (ISTP SB RAS). The in-depth understanding of the Sun’s physics require optical observations of the Sun with higher and higher angular resolution. Therefore the development of adaptive optics is going for 1-meter LSVT. We present characterizations of free atmosphere from atmospheric ERA-Interim reanalysis data above BAO. The aim is estimation of the heights of turbulent layers above LSVT to select the heights of conjugation of deformable mirrors in the development of a multi-conjugated adaptive optics system. The profiles of inverse Richardson number (1/Ri), Brunt–Väisälä frequency, gradient of potential temperature and the total vertical wind shear are calculated for detection of heights in free atmosphere where most probably turbulence generation.

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L. A. Bolbasova and V. P. Lukin "Estimation of conjugated height for adaptive optical system Large Solar Vacuum Telescope of Baikal Astrophysical Observatory", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127800F (17 October 2023); https://doi.org/10.1117/12.2688675

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KEYWORDS

Turbulence

Telescopes

Adaptive optics

Atmospheric optics

Sun

Wind speed

Air temperature

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