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Michael Hahn |
Relating The Physical Properties of Active Regions to Solar Flares![]() My project involved relating the physical properties of Active Regions to Solar Flare production. The method we used was statistical. We compared characteristics and flare data from over 120 regions. We considered the alpha value for the region ( a measure of magnetic field helicity), Bz, |Bz|, Jz, (where B is the magnetic field and J is current), perpendicular magnetic field and total magnetic field. In considering flare production we looked at the integrated energy flux released by the flares, the size of the maximum flare, and the number of flares produced. We concluded that there is no relation between the general alpha distribution and flare production, and that the best correlation is for the mean and variance of |Bz| with the integrated flare energy. As for alpha, further investigation into its relationship with the flare production of active regions showed that the change in the variance of the alpha distribution over time is related to the flare production of the region. However we did not find a clear relationship between changes in alpha and individual events. The Sun in white light, not the best picture but since
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Some nifty web pages about the Sun: |