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Aleksandr Kutsenko
Shangbin Yang
Valentina Abramenko
Dmitry Semyonov


In this paper, we describe high-cadence and high-spatial-resolution observations of the Sun acquired by the A.B. Severny Solar Tower Telescope (STT-1) in October and November, 2021. The spatial resolution of ground-based optical telescopes is usually limited by seeing. However, the spatial resolution can be improved significantly by a postprocessing of hundreds of short-exposure images of the object. In order to get the data required for the post-processing, the telescope was equipped with a camera and a high-speed detector. The detector was able to take up to tens of frames per second, which is necessary for speckle-reconstruction of the solar surface images. A thorough visual analysis of the reconstructed images as well as their comparison with the data provided by SDO/HMI yielded very promising results. Individual granules as well as penumbral fibrils are clearly seen in the images. High-spatial-resolution observations by STT-1 provide new opportunities for the studies of the Sun.


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Kutsenko A., Yang S., Abramenko V., Semyonov D., 2022. Acta Astrophysica Taurica, vols. 3, nos. 3, pp. 8–11. DOI: 10.34898/aat.vol3.iss3.pp8-11
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Fried D.L., 1966. Journal of the Optical Society of America (1917–1983), vol. 56, p. 1372.

Gaze V.F., 1948. Izv. Krymsk. Astrofiz. Observ., vol. 3, pp. 99–108. (In Russ.)

Goode P.R., Coulter R., Gorceix N., Yurchyshyn V., and Cao W., 2010. Astron. Nachr., vol. 331, p. 620.

Liu Z., Xu J., Gu B.-Z., Wang S., You J.-Q., Shen L.-X., et al., 2014. Res. Astron. Astrophys., vol. 14, pp. 705–718.

Pesnell W.D., Thompson B.J., Chamberlin P.C., 2012. Solar Phys., vol. 275, p. 3.

Rimmele T.R., Warner M., Keil S.L., Goode P.R., Knölker M., Kuhn J.R., et al., 2020. Solar Phys., vol. 295, p. 172.

Schou J., Scherrer P.H., Bush R.I., Wachter R., Couvidat S., Rabello-Soares M.C., Bogart R.S., et al., 2012. Solar Phys., vol. 275, p. 229.

von der Luehe O., 1984. Optical Society of America, Journal, A: Optics and Image Science, vol. 1, p. 510.

Wöger F., von der Lühe O., Reardon K., 2008. Astron. Astrophys., vol. 488, p. 375.