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Loop interaction in the visible emission corona: Morphological detailsCoronagraph observations of two post flare loop systems, recorded photographically in the emissions of Fe 14 (5303 A) and Fe 10 (6374 A), show occasional enhancements at the intersections of some loops. The brightness of such enhancements in the green line gradually increases to a maximum value several times greater than that of the legs of the loops and then declines with a typical lifetime approx. 30 to 60 min. In red line emission the loop systems are usually very faint, but show the same overall type of enhancement, with a lag in maximum brightness relative to that of the green line approx. 10 min. The electron density, derived from the cooling time, is approx. 10 to the 12th power/cu cm.
Document ID
19880002240
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Smartt, Raymond N. (National Solar Observatory Sunspot, NM., United States)
Zhang, Zhenda (Nanjing Univ. China)
Date Acquired
September 5, 2013
Publication Date
September 1, 1987
Publication Information
Publication: NASA-Goddard Space Flight Center, Theoretical Problems in High Resolution Solar Physics, 2
Subject Category
Solar Physics
Accession Number
88N11622
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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