Spatial distribution of oscillations in filaments |
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| Authors: | G P Mashnich V S Bashkirtsev A I Khlystova |
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| Institution: | 1.Institute of Solar-Terrestrial Physics, Siberian Branch,Russian Academy of Sciences,Irkutsk,Russia |
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| Abstract: | The velocity field in the region of quiescent filaments has been studied based on the observations performed at Sayan Solar
Observatory. The spectral observations of the velocity field have been performed simultaneously at two levels of the solar
atmosphere in lines Hβ (λ = 486.1 nm, the chromosphere) and FeI (λ = 486.3 nm, the photosphere). The character of stable and
oscillatory plasma motions in different filament parts at two levels of the solar atmosphere have been analyzed based on the
maps of two-dimensional velocity distribution. |
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