Numerical code for multi-component galaxies: from N-body to chemistry and magnetic fields

25th IUPAP Conference on Computational Physics

物理学;计算机科学

Khoperskov, S.A.^1,2 ; Vasiliev, E.O.^3 ; Khoperskov, A.V.^4 ; Lubimov, V.N.^1

Institute of Astronomy of the Russian Academy of Sciences, Pyatnitskaya st. 48, 119017, Moscow, Russia^1

Sternberg Astronomical Institute, Moscow M.V. Lomonosov State University, Universitetskij pr. 13, Moscow, 119992, Russia^2

Institute of Physics, Department of Physics, Southern Federal University, Stachki Ave. 194, 344090 Rostov-on-Don, Russia^3

Volgograd State University, Universitetsky pr. 100, Volgograd 400062, Russia^4

关键词: Galactic evolution;    Large-scale dynamics;    Multi-component simulations;    Multicomponents;    Reasonable accuracy;    Star formations;    Stellar dynamics;    Thermal process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/510/1/012011/pdf
DOI  :  10.1088/1742-6596/510/1/012011

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

We present a numerical code for multi-component simulation of the galactic evolution. Our code includes the following parts: N-body is used to evolve dark matter, stellar dynamics and dust grains, gas dynamics is based on TVD-MUSCL scheme with the extra modules for thermal processes, star formation, magnetic fields, chemical kinetics and multi-species advection. We describe our code in brief, but we give more details for the magneto-gas dynamics. We present several tests for our code and show that our code have passed the tests with a reasonable accuracy. Our code is parallelized using the MPI library. We apply our code to study the large scale dynamics of galactic discs.