论文标题
圆柱形对称径向积聚到Levi-Civita弦乐源
Cylindrically symmetric radial accretion onto a Levi-Civita string-like source
论文作者
论文摘要
在Levi-Civita背景度量的圆柱形对称性下，研究了径向稳态的多态面物质。该模型可以被视为强力引力场中Bondi积聚的圆柱类似物。作为本研究的副产品，解决了线质量密度的问题，并在物理可观察物的示例中讨论了无公制参数的作用。径向吸积方程的形式对内部溶液的结构不敏感。因此，积聚溶液分析可以限于特殊的威尔逊形式的Levi-civita度量标准，描述了一个无结构的均匀弦。
Radial steady-state accretion of polytropic matter is investigated under cylindrical symmetry in the Levi-Civita background metric. The model can be considered as a cylindrical analog of Bondi accretion in strong gravitational field. As a byproduct of this study, the issue of defining the line mass density is addressed and the role of the metric free parameters is discussed on the example of physical observables. The form of radial accretion equations is insensitive to the structure of the interior solution. Accordingly, the accretion solution analysis can be limited to a special Wilson form of Levi-Civita metric describing a structureless homogeneous string.
