Magnetic fields and flares in the region CMP 20 September 1963 |
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| Authors: | G E Moreton A B Severny |
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| Institution: | (1) CSIRO Division of Physics, Australia;(2) Crimean Astrophysical Observatory, U.S.S.R. |
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| Abstract: | The position of bright knots of 30 flares at their very beginning relative to the high-resolution isogauss maps of the longitudinal component (H
 ) and maps of the transverse component (H
 ) of magnetic field are considered for seven days during the passage of the active and large spot group in Sept. 1963 (see Table I and maps on Figures 1–8).The flare bright knots occur simultaneously in regions of opposite magnetic polarity, and the majority of these knots are adjacent to neutral line H
= 0, although not coinciding precisely with this line (Figure 9). Lenticular form of flare knots and the motions of bright material of flares is restrained by transversal field H
. Also flares are closely associated (83%) with so-called  bifurcated regions , where specific crossing of transverse components takes place (Figures 4–5). There is well-expressed (80%) coincidence of flare knots with the strongest (positive or negative) electric currents as determined from the relation j = c/4 rot H. The relation of results obtained to some existing theories of flares is briefly discussed.U.S. Nat. Acad. of Science - U.S.S.R. Acad. Nauk. Exchange Scientist Program; now at CSIRO Division of Physics, Australia. |
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