On the problem of spicular oscillations

Details On the problem of spicular oscillations On the problem of spicular oscillations

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983soph...88...35k&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 88, Oct. 1983, p. 35-41.

Physics

9

H Alpha Line, Solar Corona, Solar Limb, Solar Oscillations, Spicules, Power Spectra, Radial Velocity, Solar Magnetic Field, Solar Physics, Spectral Line Width

Scientific paper

The possibility of the existence of spicular oscillations is discussed in this paper. Hα spicules show quasiperiodic variations of radial velocities, half-widths and line intensities with a period of 5 min. A grouping of spicules at the solar limb according to positive and negative velocities is found; this is interpreted as the collective oscillation of groups of spicules. A theoretical analysis is given of the transformation of vertical five-minute oscillations into horizontal ones, in the presence of a magnetic field.

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