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arXiv 2408.05262gr-qc
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慢旋转玻色子星

Slowly Rotating Boson Stars

Jorge F. M. Delgado, Juan Carlos Degollado, Luis E. Martínez, Marcelo Salgado

AI总结:

本研究在慢旋转近似下求解爱因斯坦-克莱因-戈登系统得到玻色子星解,将方程简化为可低成本数值求解的常微分方程组,分析了解的物理性质与粒子测地线动力学,并通过与全旋转玻色子星对比明确了近似的适用范围。

摘要:

我们给出了慢旋转近似下代表玻色子星的Einstein-Klein-Gordon(爱因斯坦-克莱因-戈登)系统的解。通过引入慢旋转假设,我们能够减少方程数量,得到一个常微分方程组,无需昂贵的计算资源即可方便地进行数值求解。我们找到了一系列解,并描述了它们的部分物理性质,如总质量、角动量和致密度。我们还研究了所得时空中的粒子动力学(测地线)。通过展示慢旋转近似的适用区域,我们将其与完全旋转玻色子星(非线性处理)进行了详细比较。

英文摘要:

We present solutions to the Einstein-Klein Gordon system representing boson stars in the slow rotation approximation. By considering slow rotation we are able to reduce the number of equations yielding a system of ordinary differential equations that is conveniently solved numerically without the need of expensive computational resources. We find sequences of solutions and describe some of their physical properties such as, total mass, angular momentum and compactness. We also consider the dynamics of particles (geodesics) in the resulting spacetime. A detailed comparison with fully rotating boson stars (non-linear treatment) is performed by showing the region of validity of the slow-rotation approximation.

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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