Loss of magnetic tension in pre-flare magnetic configurations |
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Authors: | P. Venkatakrishnan |
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Affiliation: | (1) Indian Institute of Astrophysics, 560034 Bangalore, India |
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Abstract: | We demonstrate that magnetic tension vanishes at regions of large magnetic shear on the polarity inversion line. The characteristics of these tension-free fields depend on the density of the medium and, therefore, change as a consequence of instabilities which modify the density. These instabilities may possibly evolve into solar flares. We suggest this as a possible explanation for the observed occurrence of flares at locations of large magnetic shear along the polarity inversion line. |
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