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

โœ Scribed by Jun Kubota; Reizaburo Kitai; Ichiro Tohmura; Akira Uesugi


Book ID
104641996
Publisher
Springer
Year
1992
Tongue
English
Weight
955 KB
Volume
139
Category
Article
ISSN
0038-0938

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โœฆ Synopsis


We present H~ monochromatic and spectroscopic observations of the sudden disappearance of a dark filament located near the center of the solar disk on October 26, 1989. 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 with a velocity greater than 30 km s -J. Comparison of the H~ 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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