Open AccessThermal Trigger for Solar Flares
Author(s) -
N. N. Ledentsov
Publication year - 2022
Publication title -
astronomy at the epoch of multimessenger studies. proceedings of the vak-2021 conference, aug 23–28, 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.51194/vak2021.2022.1.1.124
Subject(s) - solar flare , instability , thermal , plasma , current (fluid) , physics , homogeneous , computational physics , mechanics , materials science , astrophysics , thermodynamics , quantum mechanics
We consider the thermal stability of three piecewise homogeneous models of the preare current layer: a neutral currentlayer, a non-neutral current layer, and a current layer with oblique fragmentation. Solution to the problem allows theformation of an instability of thermal nature. The instability results in fragmentation of the current layer with a spatialperiod of 1 − 10 Mm along the current direction in a wide range of coronal plasma parameters. The result can explain theobserved spatial periods of energy release in solar ares.