爱因斯坦modmax理论中的弱磁化黑洞

IF 4.3 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS
Haryanto M. Siahaan
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引用次数: 0

摘要

我们在爱因斯坦引力耦合到修正麦克斯韦非线性电动力学(ModMax)的框架下研究磁化黑洞。利用Wald的磁化方法,我们构造了一个弱磁化的静态动态黑洞解,确保电荷和磁荷对动力学都有非平凡的贡献。ModMax参数v的存在引入了一种屏蔽效应,与标准麦克斯韦情况相比,它有效地减少了黑洞的电荷。我们通过推导有效势和研究稳定圆轨道的特性,包括最内层稳定圆轨道(ISCO)对磁场强度和非线性参数的依赖关系,分析了带电类时测试粒子在该磁化背景下的运动。我们的研究结果突出了爱因斯坦- modmax理论与传统爱因斯坦-麦克斯韦框架动力学之间的差异,为强引力场下非线性电动力学的现象学提供了新的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Weakly magnetized black holes in Einstein-ModMax theory
We investigate magnetized black holes within the framework of Einstein gravity coupled to modified Maxwell (ModMax) nonlinear electrodynamics. Employing Wald's magnetization method, we construct a weakly magnetized static dyonic black hole solution ensuring that both electric and magnetic charges contribute nontrivially to the dynamics. The presence of the ModMax parameter v introduces a screening effect that effectively reduces the black hole's charge compared to the standard Maxwell case. We analyze the motion of charged timelike test particles in this magnetized background by deriving the effective potential and studying the characteristics of stable circular orbits, including the dependence of the innermost stable circular orbit (ISCO) on the magnetic field strength and the nonlinear parameter. Our results highlight differences between the dynamics in Einstein-ModMax theory and those in the conventional Einstein-Maxwell framework, offering new insights into the phenomenology of nonlinear electrodynamics in strong gravitational fields.
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来源期刊
Physics Letters B
Physics Letters B 物理-物理:综合
CiteScore
9.10
自引率
6.80%
发文量
647
审稿时长
3 months
期刊介绍: Physics Letters B ensures the rapid publication of important new results in particle physics, nuclear physics and cosmology. Specialized editors are responsible for contributions in experimental nuclear physics, theoretical nuclear physics, experimental high-energy physics, theoretical high-energy physics, and astrophysics.
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