V. I. Efremov, L. D. Parfinenko, A. A. Soloviev
Published 2016-02-09Version 1
The data of ground-based telescopes of Global Oscillation Network Group (GONG) obtained in the H-alpha line provide an opportunity to study the long-period oscillations of chromospheric filaments (quiescent prominence). For the first time, on the base of time-series of 5 days duration, combined from the observations of three observatories of the GONG, a new ultra-low mode, with period between 20 and 30 hours, was reliably detected in oscillations of a long-lived dark filament on the solar disc.
Increase in the amplitude of line-of-sight velocities of the small-scale motions in a solar filament before eruption
Internal activities in a solar filament and heating to its threads
Long-Period Oscillations of Sunspots Observed by SOHO/MDI
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