QED effects on Kerr-Newman black hole shadows  

作　　者：Shao-bing Yuan Chang-kai Luo Ze-zhou Hu Zhen-yu Zhang Bin Chen 元绍冰;罗昶恺;胡泽州;张震宇;陈斌(School of Physics,Peking University,Beijing 100871,China;Institute of Fundamental Physics and Quantum Technology,Ningbo University,Ningbo 315211,China;School of Physical Science and Technology,Ningbo University,Ningbo 315211,China;Center for High Energy Physics,Peking University,Beijing 100871,China)

机构地区：[1]School of Physics,Peking University,Beijing 100871,China [2]Institute of Fundamental Physics and Quantum Technology,Ningbo University,Ningbo 315211,China [3]School of Physical Science and Technology,Ningbo University,Ningbo 315211,China [4]Center for High Energy Physics,Peking University,Beijing 100871,China

出　　处：《Chinese Physics C》2025年第2期181-192,共12页中国物理C(英文版)

基　　金：supported by the National Nature Science Foundation of China(12275004)。

摘　　要：By incorporating first-order QED effects,we explored the shadows of Kerr-Newman black holes with a magnetic charge through the numerical backward ray-tracing method.Our investigation encompassed both the direct influence of the electromagnetic field on light rays and the distortion of the background spacetime metric due to QED corrections.We found that the area of the shadow increases with the QED effect,mainly owing to the fact that the photons travel more slowly in the effective medium,making them more susceptible to being trapped by the black hole.

关 键 词：black hole shadow quantum electrodynamics Euler-Heisenberg model effective metric 

分 类 号：P14[天文地球—天体物理]