On the dynamics of solar chromospheric spicules

Details On the dynamics of solar chromospheric spicules On the dynamics of solar chromospheric spicules

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000kfnt...16..400p&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, vol. 16, no. 5, p. 400-409

Physics

Scientific paper

A short review of observational data on chromospheric spicules at the limb and fine mottles on the disk of the Sun is given. Dynamical properties of spicules are analysed; special attention is paid to reality of the matter motion along a spicular axis. We conclude that the spicules and mottles are manifestations of the same solar phenomenon observed as a spicule at the limb. The visible vertical velocity beyond the limb is assumed to represent inadequately the real motion matter along the longitudinal section of a spicule. The velocity of longitudinal motion in the middle part of a spicule, where the radial velocities are usually measured, seems to be considerably smaller than the velocity at the top of spicular ejection, where visible vertical velocities are determined.

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