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arXiv 1707.02872gr-qc
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Kerr度规源的物理性质:表面引力势的束缚和碎裂条件

Physical properties of a source of the Kerr metric: Bound on the surface gravitational potential and conditions for the fragmentation

L. Herrera, J. L. Hernandez-Pastora

摘要:

我们调查了一些重要的物理方面最近提出的内部解决方案的克尔度规。它示出,在球对称的情况下,有一个特定的限制的最大值的表面电位(程度的紧凑性),超过此,不可接受的物理异常出现。这样的束缚与负(排斥)引力加速度的出现有关,这伴随着负压力值的出现。详细讨论了这种影响。我们还研究了一个碎片的情况下,假设源离开平衡的可能性,我们带出的差异与球对称的情况下。

英文摘要:

We investigate some important physical aspects of a recently presented interior solution for the Kerr metric. It is shown that, as in the spherically symmetric case, there is a specific limit for the maximal value of the surface potential (degree of compactness), beyond which, unacceptable physical anomalies appear. Such a bound is related to the appearance of negative (repulsive) gravitational acceleration, that is accompanied by the appearance of negative values of the pressure. A detailed discussion on this effect is presented. We also study the possibility of a fragmentation scenario, assuming that the source leaves the equilibrium, and we bring out the differences with the spherically symmetric case.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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