Fluid description of multi-component solar partially ionized plasma

TL;DR

This paper develops a comprehensive analytical framework for describing multi-component, partially ionized solar plasma, incorporating coupled equations for charged and neutral particles, radiation, and generalized Ohm's law, with applications to matter-radiation interactions.

Contribution

It introduces a self-consistent formalism for multi-component solar plasma, including generalized Ohm's law and detailed treatment of matter-radiation interactions.

Findings

Derived coupled equations for charged and neutral components.

Formulated generalized Ohm's law for single- and two-fluid models.

Provided analytical support with order-of-magnitude estimates.

Abstract

We derive self-consistent formalism for the description of multi-component partially ionized solar plasma, by means of the coupled equations for the charged and neutral components for an arbitrary number of chemical species, and the radiation field. All approximations and assumptions are carefully considered. Generalized Ohm's law is derived for the single-fluid and two-fluid formalism. Our approach is analytical with some order-of-magnitude support calculations. After general equations are developed we particularize to some frequently considered cases as for the interaction of matter and radiation.