A family of potential-density pairs for galactic bars
arxiv（2022）
摘要
We present a family of analytical potential-density pairs for barred discs, which can be combined to describe galactic bars in a realistic way, including boxy/peanut components. We illustrate this with two reasonable compound models. Computer code for the evaluation of potential, forces, density, and projected density is freely provided.
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关键词
methods: analytical,galaxies: kinematics and dynamics,galaxies: structure
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