Physics
Scientific paper
Sep 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982acasn..23..219l&link_type=abstract
Acta Astronomica Sinica, vol. 23, Sept. 1982, p. 219-225. In Chinese, with abstract in English.
Physics
Angular Velocity, Solar Prominences, Sunspots, Velocity Distribution, Filament Winding, Kinetic Energy, Magnetohydrodynamic Stability, Radial Velocity, Solar Physics, Spectroheliographs
Scientific paper
The distribution of the rotational angular velocities, the integral translational velocities and the radii along the filamentary axes of six different sunspot filaments are given in this paper. The results show that the rotational direction of a shorter active filament does not alter along the axis, and that the angular velocity varies monotonously, it can change the winding state of the filament and is a possible mechanism of producing the macroscopic unstability of prominence plasma. The winding structure of a longer quiet filament may exist, the motion of the filament is comparatively complex and the rotational direction alters along the axis. But there seems to be a positive correlation between the integral radial velocities and the rotational angular velocities of the two kinds of filaments. Finally, the rotational kinetic energy is also estimated.
Ding Yujie J.
Gu Xiao-Ma
Li Bo-Shu
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