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Proceedings Paper

Astroclimate inside the dome of AZT-14 telescope of Sayan Solar Observatory
Author(s): V. V. Nosov; V. M. Grigoriev; P. G. Kovaldo; V. P. Lukin; P. G. Papushev; A. V. Torgaev
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Paper Abstract

This work presents the results of measurements of intradome astroclimate parameters of the AZT-14 telescope of Sayan solar observatory of the ISTP SB. The picture of airflows concerned with the warm air run-out though leaky connections and air mixing inside the telescope after dome opening is obtained. It is shown that the value of the structure characteristic of the refractive index Cn2 in closed and open dome can 1.5-2 times differ. Essential turbulence intensification in front of the entrance telescope mirror when dome opening is ascertained. Strongly unstable stratification near the receiver is observable, caused by the stair opening in the concrete floor of the dome, which can result in intensification of the refractive index fluctuations in the presence of even small heat sources. Conclusions are drawn from the measurements, which can be related to all telescope of the considered class. It is necessary to prevent foreign heat sources in the dome and block warmer airflows from the stair opening; astronomical observations are to be carried out after completion of transient processes related to the dome opening.

Paper Details

Date Published: 14 February 2008
PDF: 4 pages
Proc. SPIE 6936, Fourteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 69361R (14 February 2008); doi: 10.1117/12.783655
Show Author Affiliations
V. V. Nosov, Institute of Atmospheric Optics (Russia)
V. M. Grigoriev, Institute of Solar-Terrestrial Physics (Russia)
P. G. Kovaldo, Institute of Solar-Terrestrial Physics (Russia)
V. P. Lukin, Institute of Atmospheric Optics (Russia)
P. G. Papushev, Institute of Solar-Terrestrial Physics (Russia)
A. V. Torgaev, Institute of Atmospheric Optics (Russia)

Published in SPIE Proceedings Vol. 6936:
Fourteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics
Gennadii G. Matvienko; Victor A. Banakh, Editor(s)

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