Study On The Process Of Solar Corona Heating Via Quasi-linear Kinetic Theory

Since the observation of abnormal high-temperature in solar corona, scientists have paid much attention to it. Many theories have been proposed, but none of them can be a good explanation for it. Considering the significance of interstellar weather forecast and adverse transportation, the study of this subject is still necessary.The main research content of this paper is about the process of solar corona heating via quasi-linear kinetic theory, i.e. low-βprotons can be efficiently heated by the enhanced Alfven waves. And this efficient heating process is attributed to nonresonant wave-particle scattering that leads to randomize protons motion.First, we discuss the problem within the original Vlasov-Maxwell equations, and then make use of quasi-linear approach, the reasonable approximations and mathematical skills to obtain the form of the background distribution F, which is slowly varying in time, i.e. the quasi-linear kinetic equation. After that, we use the condition of low-βplasmas and some common relations to simplify the formation of quasi-linear kinetic equation. Finally, we use the mathematical methods on the application of Green's function to get a complete expression of the F, from that, we can gain the result of T⊥=T0+WB/np, that is to say, the perpendicular temperature is enhanced. In order to prove the correctness of the analytical solution, we use finite difference method (FDM) to start the numerical simulation; the final numerical simulation has been fully in line with the analytic solution in the image, providing favorable evidence to the validity of this theory.