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Small-scale flux emergence and the evolution of equatorial coronal holesTo study the formation and development of coronal holes, their association with X-ray bright points has been investigated. The areal density of X-ray bright points was measured within the boundaries of coronal holes and was found to increase linearly with time for each of the three, long-lived, equatorial coronal holes of the Skylab era. Analysis of the data shows that the effect is not the result of global changes in bright point number and is therefore a property of the restricted longitude region which contains the coronal hole. The bright point density at the time of the hole's formation was also measured and, although the result is more uncertain, was found to be similar to the bright point number over the solar surface. No association was found between bright points and the rate of change of coronal hole area.
Document ID
19850047181
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Davis, J. M.
(American Science and Engineering, Inc. Cambridge, MA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Solar Physics
Volume: 95
ISSN: 0038-0938
Subject Category
Solar Physics
Accession Number
85A29332
Funding Number(s)
CONTRACT_GRANT: NAS5-25496
Distribution Limits
Public
Copyright
Other

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