CLUSTERS OF SMALL ERUPTIVE FLARES PRODUCED BY MAGNETIC RECONNECTION IN THE SUN
- 20 May 2014
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal Letters
- Vol. 788 (1), L2
- https://doi.org/10.1088/2041-8205/788/1/l2
Abstract
We report on the formation of small solar flares produced by patchy magnetic reconnection between interacting magnetic loops. A three-dimensional (3D) magnetohydrodynamic (MHD) numerical experiment was performed, where a uniform magnetic flux sheet was injected into a fully developed convective layer. The gradual emergence of the field into the solar atmosphere results in a network of magnetic loops, which interact dynamically forming current layers at their interfaces. The formation and ejection of plasmoids out of the current layers leads to patchy reconnection and the spontaneous formation of several small (size approximate to 1-2Mm) flares. We find that these flares are short-lived (30 s-3minutes) bursts of energy in the range O(10(25)-10(27)) erg, which is basically the nanoflare-microflare range. Their persistent formation and co-operative action and evolution leads to recurrent emission of fast EUV/X-ray jets and considerable plasma heating in the active corona.This publication has 26 references indexed in Scilit:
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