Other
Scientific paper
Aug 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002acasn..43..247j&link_type=abstract
Acta Astronomica Sinica, vol.43, no.3, p. 247-256
Other
1
Sun: Activity, Magnetic Fields, Sun: Flares
Scientific paper
In this paper, we systematically calculate the distribution of the current density in three super-active regions (isolated large ?-spots) NOAA 5395, 6659, 6891. The transverse current is for the first time included by using a simple algorithm. The main purpose is to analyze the spatial correlation between flare kernels and the current. The correlation between the current and the flare kernels is classified into two categories: intimately-correlation and quasi-correlation. We analyze three super-active regions and give a statistical result. For these active regions a statistical result is given showing that: 1) The intimately-correlation rate is about 29% and 10% for longitudinal and transverse current while the quasi-correlation rate is about 50% and 30% respectively. 2) Some flare kernels are correlating with both currents while most of them are correlating with one of them. 3) The number of flare kernels which fail to correlate with both current is only about 6% on average. 4) The areas of both current peaks are compensated for the other which are very useful in the prediction of solar flare sites. Through analysis, it is shown that J? peak regions are contained in high magnetic shearing areas while J? peak regions belong to mixed polarity areas or are near the magnetic inversion line.
Ji Hyo-Seok
Song Mu-Tao
Song S. M.
Zhang Yan-An
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