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Morphological relationships in the chromospheric H-alpha fine structureA continuous relationship is proposed between the basic elements of the dark fine structure of the quiet and active chromosphere. A progression from chromospheric bushes to fibrils, then to chromospheric threads and active region filaments, and finally to diffuse quiescent filaments, is described. It is shown that the horizontal component of the field on opposite sides of an active region quiescent filament can be in the same direction and closely parallel to the filament axis. Consequently, it is unnecessary to postulate twisted or otherwise complex field configurations to reconcile the support mechanism of filaments with the observed motion along their axis.
Document ID
19720006161
Document Type
Contractor Report (CR)
Authors
Foukal, P. (Hale Obs.)
Date Acquired
August 6, 2013
Publication Date
January 1, 1971
Subject Category
SPACE SCIENCES
Report/Patent Number
NASA-CR-124718
Funding Number(s)
CONTRACT_GRANT: NSF GA-1472
CONTRACT_GRANT: NSR-05-002-071
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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