Other
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsh43b..03i&link_type=abstract
American Geophysical Union, Spring Meeting 2008, abstract #SH43B-03
Other
7519 Flares, 7524 Magnetic Fields, 7594 Instruments And Techniques
Scientific paper
Two multi-scale analyses are used to decompose active region magnetic fields into objects of different size scales, allowing one to examine the structure of the active region field at different size scales. Lines separating opposite polarity groupings of flux at different size scales are found. It is shown that the magnetic field gradients for α, β, βγ, and βγδ active regions increases in the order listed, and that the order is maintained over all object size scales. Hence for a given Mt. Wilson classification, essentially the same field gradient information is present at all size scales, when compared to any other Mt. Wilson classification. It is also shown that on average, flaring and non-flaring active regions have a different field gradient content, and that the difference between the flaring and non-flaring active regions is size scale dependent. This suggests that the gradient distribution on smaller size scales is a better indicator of flaring activity when compared to larger size scales.
Gallagher Peter. T.
Hewett Robert
Ireland Jack
McAteer R. J.
Whelan C. M.
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