Investigation of the radial velocities of chromospheric spicules

Details Investigation of the radial velocities of chromospheric spicules Investigation of the radial velocities of chromospheric spicules

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sogru.108..529k&link_type=abstract

Akademiia Nauk Gruzinskoi SSR, Soobshcheniia (ISSN 0132-1447), vol. 108, Dec. 1982, p. 529-532. In Russian.

Other

Chromosphere, H Alpha Line, Radial Velocity, Solar Atmosphere, Solar Spectra, Spicules, Coronagraphs, Helium, Line Spectra, Velocity Distribution

Scientific paper

An analysis is presented of helium D3 and H-alpha spectral data obtained with the 53-cm coronagraph and other instruments at the Abastumani Astrophysical Observatory. The distributions of radial velocities at different heights of the chromosphere for both lines are non-Gaussian, though the distribution for the D3 line is closer to Gaussian than that for the H-alpha line. Radial velocities of spicules with respect to modulus in the two lines increase with height; for H-alpha spicules these velocities are 2-3 times greater than for D3 spicules. Five-minute oscillations of the radial velocities of spicules were observed for both lines.

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