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Solar flare effect of 6 September 2017. An analysis using Spherical Elementary Current Systems. |
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J.J. Curto (1), S. Marsal (1) |
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(1) Observatori de l’Ebre, (OE) CSIC - Universitat Ramon Llull, Roquetes, Spain. |
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For the first time, we analyzed the temporal evolution of an Sfe event, that of 6 September 2017, by using the technique of Spherical Elementary Current Systems (SECS). Thus we were able to follow the temporal evolution of the current system during the Sfe lifetime. At the beginning, a sharp increase in current intensities occurred driven by the hard X rays which at that moment were dominant. Then, a slow decay followed the advent of soft X and EUV rays. Sfe modeled current systems appear abnormally displaced in longitude with respect to the subsolar point. During the whole event, both vortices remain static and no significant shift was detected. A clear prevalence of the northern hemisphere was observed although the event occurred during the equinox. |
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Applications |
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