English

Thermal Trigger for Solar Flares III: Effect of the Oblique Layer Fragmentation

Solar and Stellar Astrophysics 2021-08-10 v1 Plasma Physics

Abstract

We consider the oblique fragmentation of the current layer as a result of the thermal instability described in Ledentsov (Sol. Phys. 296, 74, 2021a). It is shown that the fragmentation transverse to the current is a natural feature of the model. The fragmentation tilt does not exceed a few degrees for realistic preflare parameters of the coronal plasma. As a consequence, oblique fragmentation generally does not have a strong impact on the simulation results, however, extreme changes can reach an order of magnitude. Thus, oblique fragmentation can lead to a decrease in the estimate of the spatial period of the location of elementary energy release in solar flares to 0.1-1 Mm instead of 1-10 Mm obtained earlier.

Keywords

Cite

@article{arxiv.2107.03881,
  title  = {Thermal Trigger for Solar Flares III: Effect of the Oblique Layer Fragmentation},
  author = {Leonid Ledentsov},
  journal= {arXiv preprint arXiv:2107.03881},
  year   = {2021}
}

Comments

This is a post-peer-review, pre-copyedit version of an article published in Solar Physics