Spatial distribution of oscillations in filaments

Details Spatial distribution of oscillations in filaments Spatial distribution of oscillations in filaments

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ge%26ae..49..891m&link_type=abstract

Geomagnetism and Aeronomy, Volume 49, Issue 7, pp.891-897

Physics

Scientific paper

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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