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arXiv 0812.2508gr-qcastro-phhep-th
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自引力中子源的动力学

Dynamics of a self-gravitating neutron source

D. Manreza Paret, A. Perez Martinez, A. Ulacia Rey, Roberto A. Sussman

摘要:

我们研究的自引力磁化中子气体作为一个源的比安奇我时空描述的卡斯纳度规的动力学。爱因斯坦-麦克斯韦场方程组可以表示为4维相空间中的动力学系统。这个系统的数值解揭示了一个点的出现-像奇点作为一个大类的物理动机的初始条件的最终演化状态。除了在完全广义相对论的背景下研究这个源的理论兴趣之外,由此产生的理想化模型可能有助于理解在致密物体中心占主导地位的临界条件下中子气体局部体积元素的坍缩。

英文摘要:

We examine the dynamics of a self--gravitating magnetized neutron gas as a source of a Bianchi I spacetime described by the Kasner metric. The set of Einstein-Maxwell field equations can be expressed as a dynamical system in a 4-dimensional phase space. Numerical solutions of this system reveal the emergence of a point--like singularity as the final evolution state for a large class of physically motivated initial conditions. Besides the theoretical interest of studying this source in a fully general relativistic context, the resulting idealized model could be helpful in understanding the collapse of local volume elements of a neutron gas in the critical conditions that would prevail in the center of a compact object.

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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