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Observations of long-period oscillations of the solar active regions in the visible and UV spectral intervals

Tlatov, A. G.; Dormidontov, D. V.; Chernov, Ya. O.

The variation of intensity in spectral line wings, which was obtained from observations of the patrol telescope at the Kislovodsk Mountain Astronomical Station of the Pulkovo Observatory, Russian Academy of Science (KMAS) and the Interface Region Imaging Spectrograph (IRIS) space observatory, are considered. A series of observations lasting a few …