On the possibility of the solar flare energy accumulation in the vicinity of a singular line |
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| Authors: | A I Podgorny |
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| Institution: | (1) P. N. Lebedev Physical Institute, USSR Academy of Sciences, 117924, Leninsky Prospect, 53 Moscow, U.S.S.R. |
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| Abstract: | The energy of a solar flare can be accumulated as the magnetic energy of the current sheet created in the vicinity of a magnetic field singular line by the focusing of disturbances. Conditions which define the singular line in general were obtained using the properties of a singular line as it focuses disturbances. Numerical simulations and an analytical model show the possibility of the creation of a stable current sheet which becomes unstable after a quasistationary evolution. The nonlinear development of the instability leads to a fast reconstruction of the magnetic field with the release of a substantial part of the magnetic energy. The longitudinal magnetic field in our experiment increases the sheet thickness by at most a factoring of ten. |
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