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Emerging Flux RegionsAll active regions are born as Emerging Flux Regions (EFRs) which appear in H alpha as two small plages of opposite polarity connected by parallel dark arches. After a brief review of the properties of EFRs, new observations of the birth of an EFR and apparent subsequent field reconnection are reported. Fluxrope theories are reviewed, the appearance of EFRs is predicted, and this picture is then modified on the basis of high resolution observations. One arrives at a model of this phenomenon that encompasses relevant aspects such as the axial tilt of spot groups, the observed 'rotation' of EFRs as they emerge, and the fact that EFR fluxtubes are made up of many discrete strands.
Document ID
19760032065
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Glackin, D. L.
(Big Bear Solar Observatory Washington, D.C., United States)
Date Acquired
August 8, 2013
Publication Date
August 1, 1975
Publication Information
Publication: Solar Physics
Volume: 43
Subject Category
Solar Physics
Accession Number
76A15031
Funding Number(s)
CONTRACT_GRANT: NGR-05-002-034
CONTRACT_GRANT: NSF GA-24015
Distribution Limits
Public
Copyright
Other

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