Material ejecta in a disturbed solar filament

Details Material ejecta in a disturbed solar filament Material ejecta in a disturbed solar filament

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986stin...8722594r&link_type=abstract

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Computer Science

Ejecta, Solar Prominences, Spectroheliographs, Stellar Mass Ejection, H Alpha Line, Solar Spectra, Trajectory Analysis, Velocity Measurement

Scientific paper

H alpha observations, using a multichannel subtractive double pass spectrograph were made of an active region filament which undergoes a sudden disappearance. The period of observation was from 10:45 UT to 13:30 UT on 22 June, 1981. Velocity and intensity fluctuations in H alpha were measured. The proper motions of ejecta were followed allowing their trajectories and vector velocities to be determined. To model the dynamics of ejecta, models using thermal or magnetic driving forces are compared. The most promising model explains the motion as the consequence of magnetic stresses acting on an isolated magnetized plasmoid in a diverging flux tube.

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