Numerical modelling of the dynamics of the galactic halos in the colliding galaxies

Numerical modelling of the dynamics of the galactic halos in the colliding galaxies

Автор: Khrapov S.S., Khoperskov A.V., Korchagin V.I.

Журнал: Вестник Южно-Уральского государственного университета. Серия: Математическое моделирование и программирование @vestnik-susu-mmp

Рубрика: Программирование

Статья в выпуске: 2 т.12, 2019 года.

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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.

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Multi-gpu, openmp-cuda, gpu-direct, nvidia tesla, n-body, sph, colliding galaxies, задача n-тел

Короткий адрес: https://sciup.org/147232935

IDR: 147232935   |   DOI: 10.14529/mmp190210

Список литературы Numerical modelling of the dynamics of the galactic halos in the colliding galaxies

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