Elena Khomenko

NameElena Khomenko
AffiliationInstituto de Astrofisica de Canarias (IAC), Spain
TitleBeyond MHD simulations of solar atmospheric dynamics
AuthorsElena Khomenko
AbstractThe MHD approximation is a classical approximation that is successfully used to treat the dynamical processes in the solar atmosphere. Nevertheless, in weakly ionized and weakly collisional astrophysical plasmas, different species composing the plasma are not coupled and move under the action of different forces. This creates net collisional interactions between the species of different kind, providing additional dissipative and dispersive non-ideal plasma mechanisms. In the recent years, it has been realized that energy propagation and release through the solar atmosphere are affected by the presence of a large fraction of neutral atoms, and their presence may be of importance to solve the problem of chromospheric heating, dynamics and fine structure. Since then, non-ideal MHD and multi-fluid simulations that include neutrals, have become an active topic of research. In this talk I will describe recent advances in the modeling of partially ionized plasma processes in the Sun beyond MHD.