Time-Dependent Two-Fluid Magnetohydrodynamic Model and Simulation of the Chromosphere
arXiv:1904.01572 · doi:10.1007/s11207-019-1513-8
Abstract
The sun's chromosphere is a highly dynamic, partially-ionized region where spicules (hot jets of plasma) form. Here we present a two-fluid MHD model to study the chromosphere, which includes ion-neutral interaction and frictional heating. Our simulation recovers a magnetic canopy shape that forms quickly, but is also quickly disrupted by the formation of a jet. Our simulation produces a shock self-consistently, where the jet is driven by the frictional heating, which is much greater than the ohmic heating. Thus, our simulation demonstrates that the jet could be driven purely by thermal effects due to ion-neutral collisions and not by magnetic reconnection. We plan to improve the model to include photo-chemical effects and radiation.
arXiv comment24 pages, 12 figures, posters presented at AGU Fall Meeting 2018, International Symposium for Space Physics Simulations 13, and SHINE 2018. Accepted in Solar Physics journal
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