Variation of Doppler Velocities and D3 Spicule Half-Widths

This paper analyzes spectral observations of spicules in the helium D3 line obtained at the Abastumani Observatory (Georgia).with a 53-cm eclipse-free coronagraph. It is concluded that the changes in the Doppler (radial) velocities and half-widths of the D- 3 lines are in antiphase. The maxima of the periods of the oscillations of the Doppler velocities coincide with the minima of the oscillations of the half-width of D 3 .