The sudden disappearance of a dark filament observed on October 26, 1989

Details The sudden disappearance of a dark filament observed on October 26, 1989 The sudden disappearance of a dark filament observed on October 26, 1989

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992soph..139...65k&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 139, no. 1, May 1992, p. 65-79.

Physics

4

Magnetic Field Configurations, Solar Magnetic Field, Solar Prominences, H Alpha Line, Solar Spectra

Scientific paper

H-alpha monochromatic and spectroscopic observations of the sudden disappearance of a dark filament located near the center of the solar disk on October 26, 1989 are presented. The event was not associated with the flare activity. The dark filament first disintegrated into two loop-like components, and then each component successively showed ascending motion within a velocity greater than 30 km/s. Comparison of the H-alpha pictures taken before and after the start of this event suggests that the dark filament was originally composed of two magnetic flux loops.

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