Homologous flares and the evolution of NOAA active region 2372 |
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| Authors: | KT Strong JB Smith MK McCabe ME Machado JLR Saba GM Simnett |
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| Institution: | 1. Lockheed PARL, Palo Alto, CA 94304, USA;7. NASA/MSFC, Huntsville, AL 35812, USA;71. University of Hawaii, Honolulu, HI 96822, USA;2. Observatorio de Fisica Cosmica, CNIE, San Miguel, Argentina;3. Applied Research Corporation, Greenbelt, MD 20785, USA;4. University of Birmingham, England |
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| Abstract: | A detailed record of the evolution of NOAA Active Region 2372 has been compiled by the FBS Homology Study Group. It was one of the most prolific flare-producing regions observed by SMM. The flares occurred in distinct stages which corresponded to particular evolutionary phases in the development of the active region magnetic field. By comparison with a similar but less productive active region, we find that the activity seems to be related to the magnetic complexity of the region and the amount of shear in the field. Further, the soft X-ray emission in the quiescent active region is related to its flare rate. Within the broader definition of homology adopted, there was a degree of homology between the events within each stage of evolution of AR2372. |
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