Other
Scientific paper
Jul 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...306..304t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 306, July 1, 1986, p. 304-316. Research supported by Lockheed Independent R
Other
29
High Resolution, Magnetic Flux, Solar Magnetic Field, Magnetic Poles, Magnetic Signatures, Solar Activity, Time Dependence
Scientific paper
The total magnetic flux present in 28 small isolated unipolar features that surround an active region has been measured on a well-registered sequence of high-resolution magnetograms. Seventeen features showed no changes, but the rest showed changes in measured flux with time that were much greater than the uncertainty in the flux determination. Two magnetic features showed evidence for increases in flux with time, while nine others showed decay. In some cases the decaying features appear to be canceling with nearby opposite polarity flux, which may represent the submergence of flux below the photosphere. In others, the observed decay occurs in regions that are strictly unipolar, with no observable opposite polarity flux present. Some evidence for the outward diffusion of flux from a decaying feature in a unipolar region was found.
Tarbell Ted D.
Title Alan M.
Topka Ken P.
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