空洞
发表于 2025-3-28 16:09:25
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确定方向
发表于 2025-3-28 21:49:03
Jeans Solutions for Triaxial Galaxies,ystems, there are three equations, but these are not very helpful, as they contain six independent moments. By assuming that the potential is triaxial and of separable Stäckel form, the mixed moments vanish in confocal ellipsoidal coordinates. The three Jeans equations and three remaining non-vanish
违反
发表于 2025-3-29 02:34:33
The Level of Chaos in N-Body Models of Elliptical Galaxies,g values of the Lyapunov Characteristic Numbers) in self-consistent N-body models of elliptical galaxies. A careful simultaneous use of several numerical tools can induce the proportion of particles in chaotic orbits dynamically important within one Hubble time. In models with smooth centers the mas
BLOT
发表于 2025-3-29 03:03:32
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VEIL
发表于 2025-3-29 09:53:55
Disk-Crossing Orbits,esent evidence that this simplifying assumption is not critical. We find that the presence of the disk causes many more resonances than have been found in similar smooth potentials. Those resonances grow at relatively modest values of energy, overlap, and give rise to many stochastic orbits. A signi
SHRIK
发表于 2025-3-29 14:55:43
Chaos and Chaotic Phase Mixing in Galaxy Evolution and Charged Particle Beams,aning of chaos in many-body systems, (ii) the time-dependence of the bulk potential, which can trigger intervals of ., and (iii) the self-consistent nature of any bulk chaos, which is generated by the bodies themselves, rather than imposed externally. Simulations and theory both suggest strongly tha
GOUGE
发表于 2025-3-29 16:57:15
Motions of a Black Hole near the Center of a Galaxy, as an orbiting density wave which grows near the center in a galaxy model that starts without such motions. While these experiments were run without a massive particle, we suggested that similar physical effects might cause a massive particle near the center to oscillate with larger amplitudes than
阻挡
发表于 2025-3-29 20:07:22
Weak Homology of Bright Elliptical Galaxies,the Fundamental Plane reflects the existence of an underlying mass-luminosity relation for such galaxies, in a scenario where elliptical galaxies are homologous systems in dynamical equilibrium. Here I will re-examine the issue of whether empirical evidence supports the view that significant systema
macular-edema
发表于 2025-3-30 02:54:47
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天然热喷泉
发表于 2025-3-30 06:39:11
Observational Determination of the Gravitational Potential and Pattern Speed in Strongly Barred Galrs are difficult to determine, in particular for strongly barred galaxies. We will briefly review different methods and illustrate in more detail the case where the problem has been approached by numerical gasdynamical simulations.