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Published in:
01-08-2022
MHD Simulation of the Supernova Remnant Dynamics Taking into Account the Neutral Plasma Component
Published in: Mathematical Models and Computer Simulations | Issue 4/2022
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Abstract
The technique and results of three-dimensional modeling of a radiative shock wave that occurs when a supernova remnant expands into the surrounding interstellar medium are presented. The aim of the calculations is to analyze the hydrodynamic instability in a dense layer of matter formed during the deceleration of the remnant in the interstellar gas. The layer structure, which largely determines the efficiency of cosmic ray generation, depends on a number of factors and, in particular, on the rate of radiative cooling of the interstellar plasma, the magnitude of the magnetic field, and the presence of a neutral component in the ionized medium. The creation of a methodology and software for assessing these factors is the defining motivation for this work. For modeling, the MARPLE3D software package (Keldysh Institute of Applied Mathematics, Russian Academy of Sciences) is used, which was developed to solve problems of magnetic radiative gas dynamics on high-performance computing systems of the cluster type.