Perceive 发表于 2025-4-1 02:27:01
http://reply.papertrans.cn/19/1809/180868/180868_61.pngNIB 发表于 2025-4-1 07:44:19
Formation and evolution mechanisms of barred spiral galaxies, such bars respond to angular momentum loss to the spiral structure is also considered. Finally the Galactostrophic approximation is introduced and guiding centres are shown to follow Ergos curves. Lindblad-like epicyles about such curves yield a new integral for the stellar dynamic of barred galaxi迅速成长 发表于 2025-4-1 12:21:39
Orbits in barred galaxies,wo new criteria for characterizing ordered and chaotic orbits, the stretching numbers (or short-time Lyapunov characteristic numbers) and the helicity angles (the angles between the current deviations from a given orbit and a fixed direction). The distributions of successive stretching numbers and h野蛮 发表于 2025-4-1 14:22:23
http://reply.papertrans.cn/19/1809/180868/180868_64.pngascetic 发表于 2025-4-1 21:22:15
http://reply.papertrans.cn/19/1809/180868/180868_65.png行为 发表于 2025-4-2 00:56:28
Hydrodynamical simulations of the barred spiral galaxy NGC 1365,sing the FS2 code originally written by G.D. van Albada. We find good agreement between observations and models, both concerning the morphology and the velocity field. Contrary to observations, the pure bar perturbed models cannot drive an inner arm across corotation. Models having both a bar and spcraving 发表于 2025-4-2 04:38:03
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