Deflection of light by a compact object with electric charge and magnetic dipole in Einstein–Born–Infeld gravity

IF 4.8 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

The European Physical Journal C Pub Date : 2024-10-17 DOI:10.1140/epjc/s10052-024-13388-z

Jin Young Kim

引用次数: 0

Abstract

We consider the bending of light around a compact astrophysical object with both the electric field and the magnetic field in Einstein–Born–Infeld theory. From the null geodesic of a light ray passing a massive object with electric charge and magnetic dipole, the effective metric was obtained from the light cone condition reflecting the nonlinear electromagnetic effects. We found the asymptotic form of the effective metric up to the first order in gravitational constant G and Born–Infeld parameter \(1/\beta ^2\) on the equatorial plane. Then we compute the bending angle of light from the geodesic equation. The result includes particular cases where only one type of field is present taking the appropriate limits.

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在爱因斯坦-伯恩-因费尔德引力中，带电荷和磁偶极子的紧凑物体对光的偏转

在爱因斯坦-伯恩-因费尔德理论中，我们考虑了光在同时具有电场和磁场的紧凑天体周围的弯曲问题。从光线通过带电荷和磁偶极子的大质量天体的空测地线出发，通过反映非线性电磁效应的光锥条件得到了有效度量。我们发现了有效度量的渐近形式，直到引力常数 G 和 Born-Infeld 参数 \(1/\beta ^2\)在赤道平面上的一阶。然后，我们根据大地方程计算光的弯曲角。结果包括只存在一种场的特殊情况，并采取适当的限制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

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