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arXiv 2402.01634gr-qc
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Majumdar-Papapetrou 时空中的潮汐力

Tidal Forces in Majumdar-Papapetrou Spacetimes

Eduardo Albacete, Maurício Richartz

AI总结:

本文研究 Majumdar-Papapetrou 双黑洞平衡时空中的潮汐力,分析中性粒子径向与圆形测地线上潮汐力随距离和能量的变化,并数值求解不同初始条件下的测地线偏离方程。

摘要:

潮汐瓦解事件发生在天体因强潮汐力效应而被黑洞摧毁之时。人们已在多种黑洞时空中研究了潮汐力,包括 Reissner-Nordström 时空和 Kerr 时空。尽管关于这一主题已有大量文献,但静态平衡状态下黑洞周围的潮汐力此前从未被研究过。本工作的目标是填补这一空白,并探索描述两个处于平衡状态的极端带电双黑洞的 Majumdar-Papapetrou 时空中的潮汐力。我们聚焦于在与两个黑洞等距的平面上运动的大质量中性粒子,其径向和圆形测地线所对应的潮汐力。具体而言,我们研究潮汐力随与黑洞距离以及测地线能量变化的行为。我们还研究了不同初始条件下测地线偏离方程的数值解。

英文摘要:

Tidal disruption events occur when astrophysical objects are destroyed by black holes due to strong tidal force effects. Tidal forces have been studied in a variety of black hole spacetimes, including Reissner-Nordström and Kerr spacetimes. Despite the vast literature on the subject, tidal forces around black holes in static equilibrium have never been investigated before. The aim of this work is to fill in this gap and explore tidal forces in the Majumdar-Papapetrou spacetime describing two extremely charged binary black holes in equilibrium. We focus on tidal forces associated with radial and circular geodesics of massive neutral particles moving on the plane equidistant to the black holes. In particular, we study the behavior of the tidal forces as a function of the distance from the black holes and as a function of the energy of the geodesics. We also investigate the numerical solutions of the geodesic deviation equation for different initial conditions.

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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