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- W4382022008 abstract "Abstract In this article, we consider the problem of the evolution of the disk subsystem of galaxies, taking into account their halos. The global structure of the disk of galaxies strongly depends on the mass and shape of the halo. To this end, we have studied the evolution of nonradial oscillations of a nonstationary disk surrounded by a passive ellipsoidal halo with a uniform density. A system of equations for the evolution of a self-gravitating disk is obtained, taking into account the halo, in the form of matrix differential equations, and a method for its numerical analysis is developed to study the effect of the halo on disk formation. Numerical calculations were performed for various values of the system parameters, such as the initial perturbation, the circular speed of disk rotation, the ratio of the mass of the halo to the mass of the disk, and the time dependences of the major and minor semiaxes of the disk. The critical values of the system parameters are determined at which the halo stabilizes nonlinear and nonradial oscillations of the disk subsystem of galaxies at an early stage of their evolution." @default.
- W4382022008 created "2023-06-27" @default.
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- W4382022008 date "2023-01-01" @default.
- W4382022008 modified "2023-09-23" @default.
- W4382022008 title "Investigation of the halo effect in the evolution of a nonstationary disk of spiral galaxies" @default.
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- W4382022008 doi "https://doi.org/10.1515/astro-2022-0224" @default.
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