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This article is cited in 1 scientific paper (total in 1 paper)
Programming & Computer Software
Numerical modelling of the dynamics of the galactic halos in the colliding galaxies
S. S. Khrapova, A. V. Khoperskova, V. I. Korchaginb a Volgograd State University, Volgograd, Russian Federation
b Southern Federal University, Rostov-on-Don, Russian Federation
Abstract:
Based on parallel three-dimensional simulation of N-body and gas self-consistent dynamics, we study the behavior of
hot coronal gas in the colliding galaxies with “live” dark matter halos.
We model a few scenarios of the galactic collisions including “bull-eye” and non-central ones, and use
different values of the initial velocities of the colliding galaxies. Taking into account the self-gravity, we demonstrate that the collision of gaseous and
stellar components does not lead to the formation of a gaseous
“protogalaxy” observed in some numerical simulations. Also,
we show that about sixty percent of hot halo gas is expelled into intergalactic space during the collision.
Numerical simulations show that a considerable amount of gas (up to 70% for a bull-eye collisions) exchanges between two colliding galaxies.
Keywords:
Multi-GPU, OpenMP-CUDA, GPU-Direct, NVIDIA TESLA, N-body, SPH, colliding galaxies.
Received: 14.02.2019
Citation:
S. S. Khrapov, A. V. Khoperskov, V. I. Korchagin, “Numerical modelling of the dynamics of the galactic halos in the colliding galaxies”, Vestnik YuUrGU. Ser. Mat. Model. Progr., 12:2 (2019), 123–135
Linking options:
https://www.mathnet.ru/eng/vyuru493 https://www.mathnet.ru/eng/vyuru/v12/i2/p123
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Abstract page: | 146 | Full-text PDF : | 49 | References: | 9 |
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