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Escape probability for isotropic emitters near Kerr black hole with astrometric

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The paper investigates the escape probability for isotropic emitters near a Kerr black hole.We propose a new approach to obtain the escape probability in a general manner,going beyond previous case-by-case studies.This approach is based on studies of the black hole shadow with astrometric observable and can be applied to emitters with an arbitrary 4-velocities and locations,even to the emitters outside of the equatorial plane.We also consider representative examples illustrating how escape probabilities vary with distance,velocity,and inclination angle.Overall,this new approach provides an effective method for studying escape probabilities near Kerr black holes.

Kerr black holephoton escape probabilityisotropic emitters

Yu-Xuan Han、Qing-Hua Zhu、Qing-Guo Huang

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CAS Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China

School of Physical Sciences,University of Chinese Academy of Sciences,No.19A Yuquan Road,Beijing 100049,China

Department of Physics,Chongqing University,Chongqing 401331,China

School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced Study,UCAS,Hangzhou 310024,China

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国家重点研发计划国家自然科学基金中国科学院前沿科学重点研究计划

2020YFC220150211991052ZDBS-LY-7009

2024

10.1088/1572-9494/ad3745

理论物理通讯(英文版)
中国科学院理论物理研究所 中国物理学会

理论物理通讯(英文版)

CSTPCD
影响因子：0.333
ISSN：0253-6102
年,卷(期)：2024.76(5)
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